Kids' Loose Shorts

Kids' Loose Shorts FAQs

What should you look for in kids' loose shorts for running?

Start with the activity your child will do most often. For warm-weather running, PE or athletics, choose light fabric, a secure waistband and enough stretch for long strides, drills and jumps. Kids' breathable running shorts should move sweat away from the skin because damp fabric becomes heavier and can rub during sessions. The KIPRUN DRY+ 900 uses a mid-thigh cut, flowing fabric, an internal drawstring and a zipped pocket for a key or small item. See the kids' breathable running shorts for the Decathlon-developed option on this page. Other listings include marketplace brands, so check each product's stated sport and features rather than assuming they use the same construction.

How should kids' loose shorts fit?

The waistband should sit securely without digging in, while the leg opening should allow the thigh to lift freely. Ask your child to jog, squat and raise each knee when trying them on. If the shorts slide down, tighten the drawstring or try a smaller size. If the hem rides up over the thighs, size up or choose a looser cut. Jersey shorts for kids can feel soft for everyday wear, but purpose-made kids' running shorts usually manage heat and repeated movement better. A mid-thigh length provides a useful balance by limiting excess fabric without restricting the stride.

Why do breathability and stretch matter for young runners?

Children often switch quickly between sprinting, jogging, jumping and resting, so their heat and moisture levels change throughout a session. Polyester helps spread moisture across the fabric surface, where it can evaporate more efficiently, while elastane allows the material to stretch and return to shape. The KIPRUN model uses 88% polyester and 12% elastane, giving it a light, flexible feel rather than a stiff one. Decathlon tested these KIPRUN children's shorts on athletes aged 8 to 14 during hot-weather training and verified through laboratory analysis and long-term durability checks. Pair the shorts with breathable kids' running clothes so the upper layer does not trap heat and moisture.

Are loose shorts or running mid-tights better?

Loose shorts suit warm sessions, school athletics and children who prefer more airflow around their legs. Their open cut reduces fabric contact, which can feel cooler, although a very wide leg may move more in strong wind or during fast drills. Mid-tights sit close to the body, reducing fabric movement and helping limit rubbing on longer runs, but they may feel warmer. Choose according to your child's comfort, the weather and the session length rather than appearance alone. On cooler days, or when your child dislikes loose material, kids' running mid-tights offer a tighter fit while keeping the same running-focused purpose.

How should you wash your child's technical sports shorts?

Wash at no more than 30 degrees Celsius and avoid tumble drying, ironing, bleaching or dry cleaning. High heat weakens elastane, reducing stretch and moisture management. Empty the zipped pocket and turn the shorts inside out before washing. For general play, PE or mixed activities, compare the wider kids' shorts selection and check each product description for fabric, pocket security and intended use.