








Some pre-sale items are shipped via international express, which may result in longer delivery times and additional shipping fees. Exact details will be shown at checkout.
We offer a 14-day return and exchange policy from the date you receive your item. Items must be unused, undamaged, with tags attached, in original packaging, and accompanied by proof of purchase.
We cover return shipping for quality issues, defective, damaged, or incorrect items, size-related returns, oversized items such as roof racks, and approved exchanges. For other personal-reason returns, the customer is responsible for return shipping.
For full order cancellations within 14 days, the original standard delivery cost will be refunded. Partial returns generally do not include a refund of the original delivery cost.
Refunds will be processed within 5–7 business days after we receive and inspect your return. Please contact us before returning any item. For questions, email service@rockbrossport.co.uk.
Estimated delivery time

Designed for warm-weather cycling and outdoor training, this lightweight skull cap helps keep your head cool, dry and comfortable under a helmet. Made from breathable Coolmax fabric with a ventilated mesh top, it wicks away sweat quickly while offering UPF 50+ sun protection for sunny rides. The slim 13 g design fits neatly under bicycle, motorcycle and ski helmets without adding bulk.
Made from premium Coolmax material, this cycling skull cap helps improve airflow and quickly wick moisture away from the skin during warm-weather rides.
The protective fabric helps block over 98% of harmful UV rays while keeping sweat under control, making it suitable for sunny rides in 68°F to 95°F / 20°C to 35°C conditions.
Weighing approx. 13 g, the skull cap feels barely noticeable on the head and can be easily folded into a pocket, saddle bag or cycling backpack.
The seamless, edgeless construction sits snugly against the head without pressure or squeezing, helping improve comfort during longer rides and training sessions.
Wear it on its own or as a low-profile liner under bicycle, motorcycle or ski helmets to help reduce friction and improve overall helmet comfort.
Designed for warm-weather cycling and outdoor training, this lightweight skull cap helps keep your head cool, dry and comfortable under a helmet. Made from breathable Coolmax fabric with a ventilated mesh top, it wicks away sweat quickly while offering UPF 50+ sun protection for sunny rides. The slim 13 g design fits neatly under bicycle, motorcycle and ski helmets without adding bulk.
Made from premium Coolmax material, this cycling skull cap helps improve airflow and quickly wick moisture away from the skin during warm-weather rides.
The protective fabric helps block over 98% of harmful UV rays while keeping sweat under control, making it suitable for sunny rides in 68°F to 95°F / 20°C to 35°C conditions.
Weighing approx. 13 g, the skull cap feels barely noticeable on the head and can be easily folded into a pocket, saddle bag or cycling backpack.
The seamless, edgeless construction sits snugly against the head without pressure or squeezing, helping improve comfort during longer rides and training sessions.
Wear it on its own or as a low-profile liner under bicycle, motorcycle or ski helmets to help reduce friction and improve overall helmet comfort.
Learn more
ROCKBROS
Approx. 13 g
COOLMAX