* 7-16 Tween *

Playful meets polished in the THEME NYC Black & White Heart Print Skirt Set— a standout piece from this season’s must-have tween boutique collection.

Designed with a flattering smocked top, delicate tie straps, and a layered tiered mini skirt, this trendy tween outfit combines comfort with fashion-forward detail. The soft white base is accented with an allover micro heart print and finished with contrasting black lace trim along the ruffle tiers — creating the perfect balance of sweet and sophisticated.

The stretch smocking offers a flexible, comfortable fit that moves with her, while the adjustable shoulder ties add both charm and customization. The flouncy tiered skirt gives this outfit beautiful movement, making it ideal for birthday parties, spring events, graduations, vacations, and everyday boutique styling.

For moms searching for trendy tween clothing, a standout heart print tween skirt set, or elevated girls boutique spring outfits, this THEME NYC style delivers effortless style with age-appropriate polish.

Why It’s a Tween Favorite:

• On-trend black & white heart print

• Comfortable smocked stretch bodice

• Adjustable tie straps

• Tiered ruffle skirt with black lace trim

• Perfect for parties, photos & spring occasions

Pair with sneakers for a cool everyday look or dress it up with sandals for special occasions.

If you’re building a wardrobe of fashion-forward tween boutique clothing, this THEME NYC dress is a must-have for spring.

The must have dress for summer. Classic seersucker in the color of the season baby blue. This is a great summer style that can be dressed up or dressed down. 

A tween girls bestie, the livi tee is an effortless go to staple in any girls closet. This fitted tee looks super cute with denim. This super cute livi ribbed tee will have you lookin' fly! This super cute livi ribbed tee will have you lookin' fly! Perfect for any occasion, it's a fashionista's must-have. And with a comfy ribbed cotton blend, you'll love this shirt as much as the compliments you get on it!

PRODUCT FEATURES:

• Shortsleeves
• Ribbed Material
• Cropped Length

CONTENT AND CARE:

• 95 Rayon, 5 Spandex

We recommend going up a size for this style 

KATIEJ DOMINIQUE SKORT

The KatieJ Baby Blue Seersucker dominique skorts bring playful movement and feminine charm to any spring outfit. Designed with comfort and style in mind, these skirts are ideal for mixing and matching with solid pinks or coordinating tops from the collection. The girls love this style and parents love the built in shorts for full coverage underneath. 

The dominique skort from KatieJ features a comfortable fit with its smocked waist and a playful feel with its ruffles.  And best of all it has built in shorts so she can move with confidence, knowing she's covered. 

Style them with coordinating tops or solid basics for endless outfit combinations. These skirts are a favorite for tween girls who love a romantic, vintage-inspired aesthetic with modern comfort.

Looking for an effortlessly chic top for your daughter for summer?  This is it, the Ilyana top is her new go to, go with anything top.  The detailing on this one is so pretty, you'll want one in your size trust me. I can't get over how beautiful the lace is and the bow in the center is just perfection. Pair it with shorts, denim or a skirt and it looks amazing without the effort. A soft, romantic essential with a vintage-inspired touch. Perfect for warm days or layered looks, it brings an easy charm to everyday dressing.

PRODUCT FEATURES:

• Intricate lace trim detailing
  
• Adjustable tie detail at center front
• Wide shoulder straps

CONTENT & CARE:

• 100% Cotton

Why moms shop KatieJ NYC with us-

• We offer an extensive selection for every collection. This way every girl can find her own unique look and put together outfits her way. That way she loves it and feels super confident.
• We have been dressing tween girls for over 20 years, so we know a lot about sizing, styling, and what tweens want to wear.
• Moms love that they can find everything the girls want and what is trending at the moment in one easy shop. We do all the work for you so you don't have to hunt down looks at multiple stores

The pants she will wear on repeat all spring and summer long. These flowy beach vibe pants are so comfy to wear. Featuring a comfortable elastic waistband with an adjustable drawstring, these pants showcase stylish tiered detailing that adds movement and flair. The wide-leg silhouette ensures all-day comfort, making them perfect for everything from school days to weekend adventures. 

Meet Meena, the newest addition to our tween spring tops from KatieJ.  We love this casual everyday top for our KatieJ girls. This is a nice option for girls who don't care for the smocked tops or want a more swingy fun look with an effortless vibe. We think they will love paring these with their denim shorts and jeans all spring and summer long.  Perfect for any occasion, this versatile top pairs effortlessly with skirts or jeans for a chic, modern look. KatieJ NYC girls clothing is a favorite with our tween girl shoppers. 

We recommend going up a size for this style 

The Tribeca Jeans are your new everyday essential with a twist. Designed with a relaxed fit and a functional drawstring waist, they blend comfort and style effortlessly. 

PRODUCT FEATURES:

• Drawstring
• Front & back pockets

CONTENT & CARE:

• 100 Cotton
• Machine Wash

Ruffled and refined- this beautiful twirly skirt is perfect for summer. Dress it up or dress it casual with a tank. The options are endless for our KatieJ girls. 

We recommend going up a size for this style 

Romantic and effortlessly chic, the Daphne Sweetheart Boho Top is the perfect mix of vintage charm and modern femininity. Designed with delicate eyelet details and a flattering sweetheart neckline, this top adds a dreamy boho touch to your everyday wardrobe.

PRODUCT FEATURES:

• Sweetheart neckline
• Button front detail
• Short puff sleeves with ruffle trim

CONTENT & CARE:

• 100% Cotton

Our best selling print for tween jeans this season is here for spring and summer in a short. The girls love the Malibu denim shorts and how cute are they with this all over bow print?  Bows are a huge trend again this season so these are going to be a wardrobe staple for any tween girl. A tween wardrobe staple that she will mix with tanks, tees, and sweatshirts all year long. 

PRODUCT DETAILS:

• Button Closure
  
• Dark Wash
• High Waisted
• All over bow print 

CONTENT AND CARE:

• 100 Cotton
• Machine Wash

A classic cable knit cardigan never goes out of style. It's a staple in any girls closet. KatieJ tween girls cardigans are the perfect closet staple to pair over dresses, tees, and tanks.  Cardigans are a great way to extend her wardrobe for cool spring and summer evenings and into fall with layering. The KatieJ NYC tween rory cardigan has your classic cable knit styling that is perfect for layering with tanks and tees. Cardigans are always a tween closet staple so why not get one that is high quality and can be worn for multiple seasons. 

PRODUCT FEATURES:

• Cable Knit
  
• Long Sleeves
• Button Closure

CONTENT & CARE:

• 100 cotton
• Machine wash

Complete her look with the KatieJ NYC Blue Floral Puff Sleeve Top for Tween Girls—a romantic, trend-forward piece designed for stylish tweens and moms who want elevated, age-appropriate fashion. Featuring a soft white base with delicate light blue floral print, this top perfectly captures the soft, feminine aesthetic trending for tween girls in 2026.

Designed with a flattering square neckline, ruched bodice, and puff sleeves, this cropped top delivers a polished yet playful silhouette that stands out while remaining comfortable and wearable. The lightweight fabric keeps her cool for warm-weather days, while the structured fit gives a boutique-quality feel moms love.

Pair it with the matching KatieJ floral maxi skirt (sold separately) for a coordinated set that’s perfect for special occasions, vacations, or styled everyday outfits. It also pairs effortlessly with denim shorts or skirts for versatile styling.

As a premier destination for tween girls clothingand one of the largest retailers of KatieJ NYC, we curate the most on-trend, high-quality pieces that make getting dressed easy and fun.

Why moms & tweens love it:

• Soft blue floral print on white for a timeless, feminine look
• Trendy puff sleeves + square neckline silhouette
• Ruched bodice for a flattering, comfortable fit
• Lightweight fabric ideal for spring and summer
• Designed by KatieJ NYC, a leader in tween fashion

Elevate her everyday style with the KatieJ NYCBlue Floral Maxi Skirt for Tween Girls—a beautifully feminine, trend-forward piece designed for moms and daughters who want both style and comfort. Featuring a soft white base with delicate light blue floral detailing, this skirt captures the romantic, airy aesthetic that’s trending for tween girls in 2026.

Designed with a flattering tiered silhouette and flowy movement, this maxi skirt offers the perfect blend of coverage and effortless style—making it ideal for school, vacations, family outings, and special occasions. The lightweight fabric keeps her cool and comfortable, while the elastic waistband ensures an easy, flexible fit.

Pair it with the matching KatieJ floral top (sold separately) to create a polished, boutique-worthy set that’s perfect for photos, events, or elevated everyday wear. Styled together or mixed with basics, this skirt offers endless outfit versatility.

As a premier destination for tween girls clothingand one of the largest retailers of KatieJ NYC, we specialize in curating trend-driven, high-quality pieces that moms trust and tweens love.

We love this airy floral dress for spring and summer. Its an easy to wear style that can be worn casually or elevated for a more polished look with accessories and cardigans. Lightweight and breathable, this girls dress works for everything from school events to vacation dinners. It’s pretty without being overdone—and trendy without sacrificing modesty.

Summer Loving remains one of our fastest-selling girls brands each season, and the Gustavia silhouette is always in demand.

Sizing is true 

The Hailey Henley  Cami is a must have everyday basic with a sweet, fitted feel. Designed with a flattering scoop neckline and a classic henley button front, it’s perfect for layering or wearing on its own for an effortless look.

PRODUCT FEATURES:

• Soft, stretchy ribbed knit fabric
• Henley button front detail
• Scoop neckline 

CONTENT & CARE:

• 100% Cotton

They are back! Last year these flew out of the store and this year we have a new print in the printed pocket Malibu shorts from katiej. This pair is a dark washed denim with a blue toile printed pocket lining that peeks out. Is it even summer without the essential denim short?A tween wardrobe staple that she will mix with tanks, tees, and sweatshirts all year long. Keeping it cool with these hot Malibu shorts! She looks best paired with our cute cropped Livi tee and sneakers for a casual day look!

PRODUCT DETAILS:

• Button Closure
  
• Dark Wash
• High Waisted
• Blue Toile Printed Peekaboo Pocket Lining

CONTENT AND CARE:

• 100 Cotton
• Machine Wash

A fun tee to represent your city all summer long. Plus, it’s a perfect match for these must have floral pocket denim shorts. We love this new denim blue color.  It’s such a vibe  

We recommend going up a size for this style 

The ultimate cool-girl bikini. With its comfy crop top style and soft-stretch Seaside Gingham fabric, this set is made for teens who want a sleek, easy-going fit that still brings the vibes. Adjustable straps let you find your fit, while the classic-cut bottoms strike the perfect balance between coverage and style. Pair it with our matching Ciao Paradiso sarong or coordinate with your siblings in the full Ciao Paradiso & Seaside Gingham family lineup.

• Thin removable padding in size 12, 14 and 16
• Adjustable straps
• * Fully lined

An absolute standout for summer. The Seaside Gingham Teen Triangle Bikini takes our textured gingham to the next level. Its soft, stretchy and comes with thin removable padding, faux side-tie bottom.

 * Thin removable padding in size 12, 14 and 16

* Adjustable neck and back straps

* Fully lined 

She will be set to impress in this beach cover-up dress, whether she's headed out for a dinner on the beach or just spending a hot day by the pool. Thanks to the delicate eyelet detailing and 100% cotton, she'll stay cool and comfortable all day, and the cinched waist adds a hint of elegance.   100% Cotton   Button at front neck   Eyelet cut out details at sleeve and body hem

We love this showstopper dress from THEME NYC.  Tween girls denim dress in a strapless style and its adorned in zillions of rhinestones that sparkle with every move she makes. If your looking for a tween dress for her next concert, event, or party- this is it!!! 

This dress is stunning in person. What you may not notice is this beautiful white swiss dot fabric, heart shaped buttons, and sweet bow detail at the side. This dreamy girls dress is perfect for any special occasion and would be stunning to take on vacation too. Perfect for beach photos, graduation, parties and beyond. Ooh! La, La! Couture is a renowned dress designer in our girls boutique for 15 years. Their designs are some of the most beautiful and high quality dresses in the girls boutique world. Experience this whimsical look today. 

Ooh! La,La! Couture runs true for a perfectly fitted look. If you would like growing room please size up to the next size.

Minimal, feminine, and right on trend — the THEME NYC Pink Floral Strapless Dress is a must-have for tween girls who love elevated boutique style.

This sleek strapless silhouette features a soft white base with a delicate pink floral lattice print, giving it a timeless spring aesthetic while still feeling modern and fashion-forward. The clean, fitted shape creates a polished look that’s perfect for Easter, spring events, family photos, birthday parties, and special occasions.

Designed with tween comfort in mind, the fabric offers stretch for an easy, flexible fit while maintaining a structured, boutique-quality finish. The strapless neckline feels fresh and age-appropriate when styled with a light cardigan, denim jacket, or layered accessories — making it versatile for both dressy and casual occasions.

If you’re shopping for trendy tween clothing, boutique spring dresses for girls, or a standout pink floral tween dress, this THEME NYC style delivers effortless sophistication.

Why It’s a Tween Favorite:

• On-trend strapless silhouette

• Soft pink floral print for spring

• Sleek, modern boutique look

• Comfortable stretch fit

• Perfect for Easter, parties & spring photos

Pair with sandals for special events or sneakers for a cool everyday boutique vibe.

Playful meets polished in the THEME NYC Black & White Heart Print Skirt Set— a standout piece from this season’s must-have tween boutique collection.

Designed with a flattering smocked top, delicate tie straps, and a layered tiered mini skirt, this trendy tween outfit combines comfort with fashion-forward detail. The soft white base is accented with an allover micro heart print and finished with contrasting black lace trim along the ruffle tiers — creating the perfect balance of sweet and sophisticated.

The stretch smocking offers a flexible, comfortable fit that moves with her, while the adjustable shoulder ties add both charm and customization. The flouncy tiered skirt gives this outfit beautiful movement, making it ideal for birthday parties, spring events, graduations, vacations, and everyday boutique styling.

For moms searching for trendy tween clothing, a standout heart print tween skirt set, or elevated girls boutique spring outfits, this THEME NYC style delivers effortless style with age-appropriate polish.

Why It’s a Tween Favorite:

• On-trend black & white heart print

• Comfortable smocked stretch bodice

• Adjustable tie straps

• Tiered ruffle skirt with black lace trim

• Perfect for parties, photos & spring occasions

Pair with sneakers for a cool everyday look or dress it up with sandals for special occasions.

If you’re building a wardrobe of fashion-forward tween boutique clothing, this THEME NYC dress is a must-have for spring.

Love KatieJ but don't want a cropped top? Then you want to meet Alma in our newest print Vintage Wildflower!  Alma is a meet and greet length so it will meet the waistline and not show belly. You still want to size up though for this one. This one in the pink cottage stripe is so pretty. We love it with the dominique skort. The Alma Top blends comfort and style with its flattering smocked bodice and flowing full-length design. This top offers a figure-hugging fit and movement. Perfect for any occasion, this versatile top pairs effortlessly with skirts or jeans for a chic, modern look. KatieJ NYC girls clothing is a favorite with our tween girl shoppers. 

PRODUCT FEATURES:

• Smocked bodice
• Full-length

CONTENT & CARE:

• Main: 100 Cotton
• Lining: 100 Cotton

We recommend going up a size for this style 

We are your premier destination for KatieJ clothing. We offer a large selection of styles in every print this tween powerhouse designer offers. This gives our KatieJ tween girl shoppers endless options to create their own unique styles and looks for every occasion. 

• The Melody Skirt by KatieJ NYC is the definition of effortless tween style—feminine, on-trend, and perfectly age-appropriate.

  Designed in the dreamy Vintage Wildflower print, this skirt features soft pastel florals on a light base for a romantic, boutique-inspired look. The tiered ruffle silhouette is finished with delicate lace trim, creating beautiful movement with every step (and every twirl). The comfortable waistband ensures an easy fit, making it a go-to piece for both everyday wear and special occasions. We love this with the matching Alma topin the Vintage Wildflower print. 

  This is the kind of skirt tweens love for its style—and moms love for its modest, wearable design.

  At our boutique, we specialize in trendy tween girls clothing, curating standout pieces from top brands like KatieJ NYC. As one of the largest KatieJ retailers, we’re a trusted destination for moms looking for stylish, high-quality, and age-appropriate fashion for girls 7–14.

  Why It’s a Must-Have

  • Exclusive Vintage Wildflower floral print
  • Tiered ruffle design for volume + movement
  • Delicate lace trim for a feminine boutique finish
  • Comfortable waistband for easy, all-day wear
  • Perfect balance of trendy + age-appropriate

  Perfect For

  • Tween summer outfits
  • Boutique girls clothing looks
  • Special occasions, parties, and everyday style
  • Matching with tanks, tees, or the coordinating top

The Peaches Graphic Tee by KatieJ NYC is the ultimate cool-girl staple for tween summer style—playful, on-trend, and effortlessly easy to wear.

Featuring a soft white base with a vintage-inspired peaches graphic, this tee brings in one of the season’s biggest trends: fruit prints. The fitted silhouette gives it that modern tween-approved look, while still keeping it comfortable and age-appropriate.

This is the perfect everyday piece to mix and match—pair it with the Vintage Wildflower Melody Skirt for a coordinated boutique outfit, or style it with denim shorts or jeans for an easy, casual look.

At our boutique, we specialize in trendy tween girls clothing, curating the most sought-after styles from brands like KatieJ NYC. As one of the largest KatieJ retailers, we’re a go-to destination for moms looking for stylish, high-quality, and age-appropriate fashion for girls 7–14.

Why It’s a Must-Have

• Trend-forward peaches graphic print
• Soft, comfortable fabric for everyday wear
• Fitted silhouette for a modern tween look
• Easy to style with skirts, denim, or sets

Melina is always a KatieJ fan girl favorite. It has removable straps so it can be worn with or without straps. We love the lace trimming on this beautiful floral print and the smocked bodice gives it a flexible fit for every body type. 

Top-selling silhouettes like the Emerson dressand Lainey dress offer flattering fits for different body types, making them favorites among tween girls and moms alike. Perfect for spring parties, family photos, Easter, vacations, and everyday wear, these floral dresses combine romantic charm with modern ease.

Available across multiple silhouettes including the best-selling Emerson and Lainey dresses, plus coordinating tops, skirts, and shorts, this versatile print allows every tween to find her perfect fit. Pair it with solid pink separates for endless outfit combinations. With floral prints trending strong again this season, this KatieJ collection is a spring staple for every tween wardrobe.

We are obsessed with this new dress style from KatieJ NYC. The bloom dress is an effortless easy, breezy day dress. And best of all it HAS POCKETS!!  The lace trimming is super sweet on this beautiful floral print. This is perfect for tween girls looking for casual styles they can wear all spring and summer long. We think the girls are going to love this new style.  

PRODUCT FEATURES:

• V-neckline with lace trim
• Adjustable spaghetti straps
  
• Side pockets

We recommend going up a size for this style 

This adorable tween top features sweet ruffle straps and a ruched body for a comfy, cute fit. The playful pink print adds a cheerful touch, making it perfect for fun outings or just a day of play. Stylish and comfortable, it's a fun addition to your little one's wardrobe. Pair with our Emery Ruched Tween Skirt for an effortless outfit!

Our Favorite Details:

• Ruffle detail
  
• Ruched