Light and Breathable Sports T-Shirt AT 300

Ref. : 8811788

Our athletics-enthusiast designers have created this short-sleeved T-shirt to protect kids from UV light as they train.

With its soft, UV-resistant fabric, kids can wear this short-sleeved T-shirt when exercising on sunny days. We've used a stretchy fabric to help with learning athletic movements.

Color: denim blue

  • 5-6years/3'7"-4' undefined
  • 7-8years/4'-4'2" undefined
  • 8-9years/4'3"-4'6 undefined
  • 10-11years/4'7"-4'9" undefined
  • 12-13years/4'9"-5'2" undefined
  • 14-15years/5'2"-5'7" undefined

Our services :

  • Free delivery for Decathlon brands orders above $399
  • All Decathlon products are eligible for lifetime return

Products benefits

Sun protection

The UV-resistant fabric protects the bust from the sun during sport.

Moisture management

The fabric absorbs perspiration and wicks it away to the outside.


The very soft, supple fabric has an elegant drape


The fabric makes it really light so you can move with ease.

Technical information

We adapt to your child's size:

You told us that our products are cut too small!
So, as of 2020, the size on our Kalenji kids' T-shirt will be shown in height (centimetres) as well as age, to help you make your choice.
So how does it work? To choose, you just need to know child's size.
From 1.13 m to 1.72 m, you'll find sizes 5-6 years to 14-15 years.


2 years

Product concept & technology

Product Composition

Main fabric 100% Polyester


To make your product last longer, we recommend storing it in a dry, well-ventilated place.


Driss, our test engineer, had this T-shirt tested by a dozen kids during a 2-hour athletics session. They especially liked the fabric's softness and lightness. The fabric's ability to wick away perspiration was very popular.

Maintenance advice

Machine wash - 30° max - normal

Do not bleach

Do not tumble dry

Do not iron

Do not dry-clean

User reviews

Questions & Answers