Help and contactFree standard delivery over €30.00 & free returns*30-day return policyGift Cards
  • Women
  • Men
  • Kids
Zalando homeZalando home
Your account
  • Winter
  • Girls
  • Boys
  • Baby
  • Shoes
  • Accessories
  • Sports
  • Designer
  • Brands
  • Pre-owned
  • Sale
No search history
GO TO TOPGo to toparrow_up
  • Kids
  • Designer
  • Clothing
  • Underwear & Nightwear
BackClothing

Designer underwear for kids Size 13Y

T-shirts & tops
Dresses
Trousers
Shorts
Swimwear
Pullovers & knitwear
Jackets & coats
Skirts
Underwear & Nightwear
Top filters
28 items
  • Long-sleeve navy cotton top paired with green plaid flannel pants featuring shades of green, black, and white in a checkered pattern.

    POLO RALPH LAURENTEE PANT SET - Pyjama set - white

    €75.00

  • Navy blue cotton pajama set featuring a button-up shirt with white piping, chest pocket, and matching pants with elastic waistband and logo detail.

    POLO RALPH LAURENSET - Pyjama set - refined navy

    €80.00

  • Two short-sleeve T-shirts in black and white cotton fabric; features a crew neck and a small logo on the hem of each shirt.

    POLO RALPH LAURENCREW TEE 2 PACK - Undershirt - white/black

    €50.00

  • White cotton t-shirt featuring a bear graphic with a flag and blue striped shorts adorned with bear patterns and a navy waistband.

    POLO RALPH LAURENBEAR TEE - Pyjamas - white/elite blue

    €75.00

  • Pack of three t-shirts: one solid black, one dark grey, and one light grey. Cotton material, short sleeves, round neck, small logo on hem.

    POLO RALPH LAURENCREW 3 PACK - Undershirt - black/andover heather

    €65.00

  • Navy blue cotton short-sleeve t-shirt and shorts set. Features a crew neck, elastic waist on shorts, and subtle logo accents. Soft texture.

    POLO RALPH LAURENSET - Pyjama set - refined navy

    €40.00

  • Two white short-sleeved t-shirts made of cotton. Each features a crew neck and a small dark logo on the lower right hem.

    POLO RALPH LAURENCREW TEE 2 PACK - Undershirt - white

    €50.00

  • Black cotton t-shirt with short sleeves, paired with black shorts featuring a repeated white logo pattern. Flat lay arrangement.

    POLO RALPH LAURENBOYS SLEEP - Pyjamas - black

    €65.00

  • Pink cotton t-shirt with white polo player graphic paired with pink and white striped shorts, featuring a waistband labeled "POLO RALPH LAUREN."

    POLO RALPH LAURENTEE SLEEP SET - Pyjama set - white/carmel pink

    €40.00

  • Pink cotton short-sleeve T-shirt and shorts set, featuring a crew neckline and elastic waistband. Small green logo accents on both pieces.

    POLO RALPH LAURENSET - Pyjama set - preppy pink

    €40.00

  • Navy blue cotton t-shirt and matching pants set. T-shirt has short sleeves and a round neckline. Pants are loose-fitting with an elastic waist.

    POLO RALPH LAURENTEE PANT SET - Pyjama set - refined navy

    €70.00

  • Pink pajama set made of soft fabric, featuring a button-up top with a chest pocket, white piping, and matching pants.

    POLO RALPH LAURENSET - Pyjama set - preppy pink

    €80.00

  • Navy cotton t-shirt with short sleeves, paired with navy shorts featuring a white repeated horse logo pattern and elastic waistband.

    POLO RALPH LAURENBOYS SLEEP - Pyjamas - newport navy

    €65.00

  • Two short-sleeve t-shirts: one gray, one navy. Both feature a crew neckline and soft, smooth texture with small logo accents.

    POLO RALPH LAURENCREW TEE 2 PACK - Undershirt - newport navy

    €45.00

    Originally:€50.00-10%

  • Short-sleeve pajama set with a mix of pastel colors: light blue, pink, and green stripes. Features a chest pocket and button-down front.

    POLO RALPH LAURENSET - Pyjama set - multi-coloured

    €85.00

  • Black cotton short-sleeve t-shirt with red logo and multicolored 'POLO' graphic at the bottom; matching black shorts with logo detailing.

    POLO RALPH LAURENTEE - Pyjama set - polo black

    €65.00

  • White cotton t-shirt with navy polo player logo, paired with navy shorts featuring repeated small white polo player patterns.

    POLO RALPH LAURENTEE AND - Pyjamas - newport navy

    €65.00

  • Navy cotton T-shirt with red logo and white block lettering "POLO" on the hem. Paired with matching navy shorts featuring similar design.

    POLO RALPH LAURENTEE - Pyjama set - newport navy

    €65.00

  • Pajama set in light blue cotton with vertical white stripes, featuring a pattern of small cartoon figures. Includes a button-up shirt and pants.

    POLO RALPH LAURENBEAR COAT - Pyjamas - white/elite blue

    €110.00

  • Three white short-sleeve t-shirts made of cotton. Each features a crew neck and a small logo in the lower left corner.

    POLO RALPH LAURENCREW 3 PACK - Undershirt - white

    €65.00

  • White cotton t-shirt with green polo player graphic; green shorts with navy polo logo pattern and black waistband labeled "RALPH LAUREN."

    POLO RALPH LAURENTEE AND - Pyjamas - vineyard green

    €65.00

  • White cotton t-shirt with light blue polo player graphic; matching light blue shorts with white polo player pattern and elastic waistband.

    POLO RALPH LAURENTEE SLEEP SET - Pyjama set - elite blue

    €40.00

  • Cotton pajama set featuring a white T-shirt with a blue polo player graphic and light blue shorts with repeated white polo player logos.

    POLO RALPH LAURENTEE AND - Pyjamas - harbor island blue

    €65.00

  • Cotton short-sleeve pajama set in light blue with white stripes, featuring a repeating pattern of small figures. Includes a pocket on the shirt.

    POLO RALPH LAURENBEAR SET - Pyjama set - white/elite blue

    €75.00

  • Page 1 of 1

More Brands

  • 2nd Day
  • AllSaints Clothing, Shoes & Accessories on SALE
  • American Vintage Womens Clothing
  • Billionaire Boys Club
  • BLANCHE Womens shoes, fashion & accessories
  • Burton
  • BY FAR Shoes
  • CeLaVi Kids' Clothing
  • Cluse
  • Color Kids Clothing
  • DKNY Womens Clothing
  • DRYKORN Womens Clothing
  • Dsquared2 All
  • EIGHTYFIVE Clothing
  • Fabienne Chapot Womens Clothing
  • Frugi
  • Furla Women's Bags
  • GANT Men's Clothes
  • Gestuz Clothing
  • Gioseppo Shoes
  • HOKA All
  • Hust & Claire
  • Huttelihut
  • Icecream Clothing
  • IGOR
  • Italian Fashion
  • Lind Womens Clothing
  • LIU JO
  • Lloyd
  • MARC JACOBS Women's Accessories
  • Marco Tozzi Shoes
  • MINOTI Clothing
  • MM Womens Clothing
  • Mou All
  • Natural World Shoes
  • NNormal Shoes
  • Olympia Clothing
  • Petit Bateau Clothing, Shoes & Accessories on SALE
  • Primigi Shoes
  • Pure Cashmere Clothing
  • R. M. WILLIAMS
  • Robeez Shoes
  • Skechers Shoes
  • Superfit
  • Sweet Protection Men's Sports Helmets
  • THOMAS SABO
  • TINYCOTTONS
  • True Religion All

More Inspiration

  • 1950s Fashion
  • adidas Terrex Kidswear
  • Baby Girl Shoes
  • Baby Jumper Size 0-1M
  • Baby Snowsuit
  • Boys Clothes
  • Bridal Lingerie
  • Converse Kids' Shoes
  • Converse Kidswear
  • Curling Irons
  • Dr. Martens Kids' Shoes
  • Flower Girl Dresses
  • Girl Trainers
  • Girl Trainers
  • Girls Clothes
  • Girls' Dresses
  • Glitter
  • Hair Bands
  • Houndstooth
  • Kids' Bags & Rucksacks
  • Kids' Hats & Caps
  • Kids' Running Shoes
  • Kids' Shorts
  • Kids' Slippers
  • Kids' Snow Boots
  • Kids' Sport's Rain jackets
  • Kids' Sports Gilets - Plain
  • Kids' T-Shirts
  • Kids' Tracksuits - Training & fitness
  • Kids' Wellies
  • Kids' white Bodies
  • Lindex
  • Mango Kids
  • Men's Boots
  • Name it
  • Over Ear Headphones
  • Oversized Jumpers
  • Oxford Shoes
  • Puma Future Football Boots
  • Sequins
  • Ski Helmets
  • Ski Trousers
  • Smoking Jackets
  • Snowsuits for Kids Sale
  • Suede Shoes
  • Timberland Kids' Boots
  • Vans Kids' Shoes
  • Zip-up Hoodies

chatHelp and Contact

  • All Help Topics
  • Track your parcel
  • Report a damaged item
  • Delivery Information
  • Return an Order
  • Find the right size
  • How To Cancel An Order
  • Accepted Payment Methods
  • Subscribe to our newsletter
  • Report a vulnerability

gift_cardGift Cards

  • Buy Gift Cards
  • About Gift Cards and Vouchers
  • Redeem a Gift Card
  • Subscribe to newsletter

zalando_logo_outlinedAbout us

  • Visit our Corporate Site
  • Zalando careers
  • Newsroom
  • Investor Relations

credit_cardOur Payment Methods

truckOur Partners

shopping_bag_fullOur Promises

  • Free Delivery*
  • 30-day Return Policy
  • Free Returns

zalando_logo_outlinedOur services

  • Connected Retail
  • Marketing Services
  • Learn more
  • Tech Blog
  • Legal Notice
  • Terms & Conditions
  • Privacy Notice
  • Data preferences

Zalando Apps:

QR Code Download App

You can also find us on

  • facebook
  • instagram
  • pinterest
  • tiktok