messydays
MessyDays Performance Sport Shorts
MessyDays Performance Sport Shorts
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Lightweight sport shorts for active older kids — school PE, weekend sport, and serious play.
Made from the same 90% Polyester, 10% Spandex, 160 GSM fabric as the Performance Sport Tee — finished with KOOLTEX. A self-fabric waistband with internal elastic and drawcord keeps the fit fast to put on and secure through every activity.
- KOOLTEX finish — specialist cooling treatment to help manage heat during physical activity.
- Ultralight 160 GSM — the lightest bottom in the MessyDays range.
- 10% Spandex stretch — unrestricted movement in every direction.
- Self-fabric elastic drawcord waistband — secure and adjustable without bulk.
- OEKO-TEX Standard 100 compliant — azo-free dyes, skin-safe pH 4.5–7.0.
Available in Navy and Matcha. Pairs with the Performance Sport Tee in both Emerald and Pool Blue. Sized for children 6–11 years.
Fit & Size
Fit & Size
An active fit through the seat with room at the hem — designed for unrestricted movement during sport and play.
Available in sizes 6–7, 8–9, and 10–11 Yrs. Use the Size Guide and match by waist and hip measurement. The elastic drawcord allows some adjustment, but measuring first gives the most accurate fit.
If your child is between sizes or prefers more room for sport, we recommend sizing up.
Fabric & Care
Fabric & Care
Fabric: 90% Polyester / 10% Spandex, 160 GSM with KOOLTEX finish. Self-fabric waistband with internal elastic and drawcord.
Care: Machine wash cold, gentle cycle. Wash with similar colours. Do not bleach. Do NOT tumble dry — heat affects the spandex content and the KOOLTEX finish. Hang or lay flat to dry in shade. Do not iron. Do not dry clean.
The KOOLTEX finish is heat-sensitive — always air dry to preserve both the stretch and the performance finish for longer.
See our Fabric & Care page for more.
Product FAQs
Product FAQs
What is the KOOLTEX finish?
KOOLTEX is a specialist cooling and performance finish applied to the fabric, designed to assist with heat management and comfort during physical activity — the branded finishing technology used across MessyDays' Performance tier.
What age group are these designed for?
Available in sizes 6–7, 8–9, and 10–11 Yrs — suited to older children who play sport more regularly.
Are these suitable for school PE?
Yes — the lightweight 160 GSM construction, KOOLTEX finish, and 10% spandex content make these well-suited for school PE and active sport.
Can I tumble dry these?
No. Both the spandex content and the KOOLTEX finish are heat-sensitive. Always air dry in shade to preserve the fabric and the performance finish.
Do these pair with the Performance Sport Tee?
Yes — they use the same base fabric. Navy and Matcha pair naturally with both Emerald and Pool Blue tee colourways for a co-ordinated active look.
Returns & Exchanges
Returns & Exchanges
Returns & Exchanges
- Free size or color exchange within 7 days of delivery
- Free store credit, or a refund to your payment method for a small pickup fee
- Wrong or damaged item? Fully free, priority pickup — no exceptions
