Anti-UV swim t-shirt - Ultimate - Coolibar


Size guide


COOLIBAR Men’s Tops: T-shirt, Shirt, Polo, Jacket, Sweatshirt...

Coolibar est une marque américaine qui taille large. Si vous êtes entre deux tailles, nous conseillons fortement de prendre la taille inférieure.

US Size Chest circumference (cm)
S 86-92
M 97-102
L 107-112
XL 117-122
XXL 127-132


To measure your chest circumference, place the tape measure at your armpits, in the strongest place, and go around.


COOLIBAR Men Stockings: Trousers, Short...

Coolibar est une marque américaine qui taille large. Si vous êtes entre deux tailles, nous conseillons fortement de prendre la taille inférieure.

US Size Size Corresponding Waist circumference (cm)
S 28 71
30 76
M 32 81
34 86
L 36 91
38 97
XL 40 102
42 107
 XXL  44 112
46 117


Pour mesurer votre tour de taille, placez le mètre ruban au niveau du creux de votre taille, en dessous de vos côtes et au-dessus de vos hanches. A l'endroit le plus creux.

Free shipping and returns depending on the country. Go on the "Delivery" page to learn more.

4 to 8 working days* for free delivery

2 to 4 working days* for express delivery

*Excluding products indicated in pre-order (if so, specified above the add to cart button)

For any questions, we can be reached at +33 9 77 08 01 51 (French fixed line)


SIZE ADVICE: Coolibar is an American brand that sizes large, we advise you to take a size smaller than your usual size in France. Use the size guide for more details.

For any questions it will be our pleasure to answer you by phone at +33 9 77 08 01 51

Anti-UV swim t-shirt - Ultimate - Coolibar

Designed with a lightly tailored fit for all types of water activity, the Ultimate UV Protection T-Shirt is packed with technical features to keep you comfortable and protected. Grommets are included in the armpits to improve air circulation and water drainage. A zipped back pocket can store a card or keys. This men's lycra stays in place with a loop inside the front hem that attaches to the swimsuit and a drawstring elastic at the back hem to keep it from going up. The revolutionary water-repellent finish wicks away water and improves drying time.

  • Anti-UV: UPF 50+ (except part under the arms) *
  • Crew neckline
  • Flat seams to prevent chafing
  • Back hem with elastic to keep the t-shirt in place.
  • Swim shorts fastening loop inside the front hem
  • Eyelets in the armpits for better air circulation and better water evacuation.
  • Zippered storage pocket
  • Water repellent finish to wick away water and improve drying time.
  • Aqua Plus Fabric: Water repellent with 4-way stretch and quick drying performance. Chlorine and salt water resistante

Recommended for swimming and water sports.
Avoid active fitness. Does not wick away moisture and may cause a feeling of heat

* This garment's mesh ventilation panels allow for better air circulation to promote cooling and help the wearer stay dry. Vent panel areas of this product may be subject to lower levels of UPF protection when exposed to direct sunlight, depending on use. We recommend the use of sunscreen for all areas of exposed skin and areas that may need additional protection depending on your use.

About Ker Sun

Ker Sun is above all a personal story. About ten years ago, Claudia, our co-founder, was diagnosed with Lupus, an autoimmune disease that forces her to be extremely careful with her sun protection. That day, she felt like she was losing some of her freedom. Like many, she no longer felt safe going outside.

In 2019, to make wearable sun protection accessible, we launched Ker Sun. Ker Sun's mission is to protect every person from sun damage. We want to give back to those with the most sensitive skin, the freedom to enjoy outdoor activities safely. We also actively participate in the prevention of UV-related diseases.

Today Ker Sun is the first French online store specialized in sun protective clothing and accessories. We distribute different brands and quality products to guarantee you an optimal sun protection.

At Ker Sun, your safety is our priority! All selected sun protective clothing is UPF50+ certified regardless of the color of the fabric. Take clothes that you will enjoy wearing, we take care of your skin.