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Lou Stripe UV Onesie

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UPF50+ High Coverage

Developed by a Dermatologist

Breathable, Comfortable & Quick-drying

Help about your size
  • Hurry, only 1 item left in stock!

No more worrying about burnt shoulders.

This is the Lou Stripe. Superb comfort, this onesie is quick drying, flexible and breathable. The back zip has a zip guard not to scratch the skin.

Suitable for playing outdoors and swimming.

  • Excellent UV Protection: Our UV onesie is developed by dermatologist Dr. Daniel Kadouch and offer UPF50+ protection to safeguard your child from harmful UV rays, so you can relax knowing they're well-protected.
  • Save Money & Avoid Hassle: The Lou Stripe UV Onesie removes the need to (re-)apply sunscreen all-over - saving you money in the long run - and reducing plastic waste.
  • Play & Swim All Day: Perfect for both playtime and swimming, UV clothing ensures your child stays safe under the sun, wherever their adventures take them.
  • Sustainable & Earth-Friendly: Tenue Soleil is  B-Corp Certified brand, and our UV clothing is made from ECONYL ® fabric. Made from ocean plastics like regenerated fishing nets, it is a planet-friendly choice for eco-conscious parents.
  • Comfortable & Stretchy: Designed for your child's comfort, our UV onesies are soft, breathable, and stretchy, allowing unrestricted movement during play and swim.
  • Quick-Dry, Breathable Technology: The onesie dries rapidly after swimming, ensuring your child stays comfortable and cool throughout the day.
  • Stylish & Trendy: Your little one will look adorable and fashionable in the Lou Stripe UV Onesie, combining sun protection with a touch of style.
  • Join Our Preloved Initiative: When your child outgrows the clothing, return it to us and give it a second life with another family. You'll also receive an exclusive discount for your next purchase.
  • Happy Customers, Happy Families: Our satisfied customers rave about the quality, sustainability, and sun protection our UV suits provide for their kids. 

New customer? Join our newsletter today for a 10% discount on your first purchase and stay informed about the latest sun-smart trends and special deals.

Get sun smart - Add to cart. 

*The model wears the size 18 Months – 2 years (92-98 cm) and is 99cm

We've got you covered.

Size chart (cm)


PS. Doubting between two sizes? Size up!


75% Recycled Polyester
22% Elastane

Lining: 100% Polyamide

All our UV swimwear is made in Europe using ECONYL®.

This is a special regenerated nylon from recovered ocean fishing nets and other nylon waste.

Tightly knitted to ensure its UPF50+ rating, this fabric holds its shape, keeps you covered in- and out of the water, and keeps our oceans clean.


Always rinse with clean water after contact with chlorine or sea water to ensure the fabric retains its optimal stretch qualities.

Wash Instructions

Wash inside out at 30° and let air dry.

Do not tumble dry.

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TENUE DE SOLEIL online (c)Valentine Raeman-14
TENUE DE SOLEIL online (c)Valentine Raeman-15
TENUE DE SOLEIL online (c)Valentine Raeman-38
Lou Stripe UV Onesie
  • B Corp Certified

    ECONYL® UV clothing. Microplastics-free & coral-friendly sunscreen.

  • Give Back Initiative

    From each order €2 is donated to children's cancer research

  • Developed by a Dermatologist

    Founded by dermatologist and skin cancer expert (MD PhD) Dr Daniel Kadouch

  • Preloved UV Clothing

    Return and purchase preloved UV clothing. See "Preloved" for more info.


Shipping & Delivery

After placing your Tenue de Soleil order you will receive a track & trace link within 24 hours.

Shipping Costs:

Europe: €2,95
Free shipment above €50

World: €14,99
Free shipment above €150

Delivery time

Your Tenue de Soleil order will be shipped to you as soon as possible, and we aim at getting your order to you within 48 hours on regular business days.

International orders and orders outside Europe may take longer to arrive.

Easy Returns

We’re so convinced you’ll absolutely love our products, that we’re willing to offer a 30-day risk-free money-back guarantee. If you receive your order and are not satisfied for any reason you can return the product for a refund within 30 days.

How it works:

  1. Please fill in the Return Form via this link.
  2. The item(s) should be returned in original condition (unworn, unwashed and unaltered) and in the original packaging with all hang tags attached.

    Send your return to the below address. Return costs are at your own expense.

    Tenue de Soleil Warehouse
    Turbineweg 21. 2371 DV Roelofarendsveen

  3. Returns will be processed within 5 working days from receiving the return. Refunds will be credited to your original method of payment. This process can take up to 14 days.

Preloved Items

Our preloved initiative allows customers to return a previously used item for resale in our store. If your garment is deemed in good condition you will receive a 25% discount on a new item.

How it works

Shop Preloved