- Free shipping to mainland Spain on orders over 40€
- Free shipping to France, Italy and Portugal on orders over 60€
- Automatic 21% discount for the Canary Islands
- All store orders shipped within 24-48h
- 14 days to return products
Showing 1–16 of 17 resultsSorted by latest
- 15,00 €



Running T-shirt 42K RAW KIDS Black
- 15,00 €



Running T-shirt 42K RAW KIDS White
- 15,00 €



Running T-shirt 42K RAW KIDS Pink
- 20,00 €

42K RUNNING SHORT EVO 3-inch unisex technical shorts
- 20,00 €



Running tights 42K 4TRACK 4Track
- 15,00 €



Running tights 42K 4TRACK Brief
- 25,00 €



Unisex long running tights 4TRACK Long
- 20,00 €



Running tights 42K 4TRACK 4Track
- 20,00 €

Technical trousers 42K TRACKSUIT BOTTOMS Active Black
- 10,00 €

Running T-shirt 42K LUNAR KIDS Aurora Red
- 10,00 €

Running T-shirt 42K LUNAR KIDS Blue Jewel
- 10,00 €

Running T-shirt 42K LUNAR KIDS Sharp Green
- 10,00 €

Running T-shirt 42K LUNAR KIDS Red Blood
- 10,00 €

Running T-shirt 42K LUNAR KIDS White
- 10,00 €

Running T-shirt 42K LUNAR KIDS Pacific Blue
- 10,00 €

Running T-shirt 42K LUNAR KIDS Anthracite
Kids' Running
Technical running and multisport clothing for little champions
Children's sportswear
Children are pure energy in motion and they need clothing that lets them make the most of their physical activities. At 42K Running we understand the needs of young athletes perfectly, and that is why we have children's sportswear that combines comfort, durability and style.
Take a look at our collection and kit out your young athlete to run, jump and play with all the freedom they need!
Why buy sportswear for boys or girls?
Physical performance
Children's sportswear is designed to optimise their physical performance and protect them during activity. Breathable fabrics help regulate body temperature and help move sweat away, preventing the build-up of moisture that could cause discomfort or chafing.
Health benefits
When children play sport in the right clothing, their coordination, agility and balance improve significantly. Constant physical activity also strengthens their respiratory, nervous, circulatory, immune and digestive systems, helping to prevent obesity problems.
Comfort and mobility
Comfort is a key factor if children are to enjoy sport. A garment that fits them well will let them move without restrictions and will help keep them motivated during their physical activities. That is why we recommend choosing sizes that allow some margin for growth, but without compromising function.
The psychological side
The psychological side matters too. When children feel comfortable in their sportswear, their confidence and self-esteem grow. This helps them develop a positive attitude towards sport and establish healthy habits that they will keep throughout their lives.
Safety during exercise
In the same way, safety also plays a fundamental role. The right sportswear protects children from possible injuries and helps them maintain an optimum body temperature during exercise.
The best children's running clothing online
At 42K Running we are proud to offer a wide selection of technical garments designed specifically for the youngest athletes. Our catalogue ranges from technical T-shirts and tights to shorts, all made with top-quality materials that guarantee lightness, softness and excellent breathability.
We also offer a wide range of colours that will make the little ones feel motivated and happy during their physical activity. Don't wait any longer: visit our online shop and place your order now!
Frequently asked questions about children's sports clothing
What are the advantages of buying athletics clothing for boys and girls at 42K Running?
At 42K Running we offer athletics clothing for girls and boys made with high-quality technical fabrics that guarantee maximum comfort, breathability and protection. What's more, all our children's sports clothing is suitable for many activities such as athletics, padel, tennis or gymnastics.
What are the features of children's running clothing?
Running clothing for girls and boys features breathable, lightweight fabrics that regulate body temperature and move sweat away quickly, as well as flat seams to prevent chafing.
How can I buy children's sports clothing?
You can buy all our children's sports clothing directly in our online shop, with delivery in 48-72 hours and free shipping on orders over €50 to mainland Spain. You also have 14 days for returns if you are not satisfied with your purchase.


