Assos Summer Cap Foil P1 2026

The Summer Cap Foil P1 2026 is the seamless summer under-helmet developed by Assos to offer optimal comfort in hot weather. Designed to be worn under a helmet, it combines UV protection, extreme breathability and quick-drying properties to keep your head cool and dry even during the most intense efforts.

Its ultra-lightweight, low-volume, completely seamless construction allows for a perfect fit under the helmet without creating any pressure points. The Foil technical fabric promotes rapid wicking of sweat whilst offering a continuous cooling sensation, ideal for long summer climbs or rides in hot weather.

Discreet and almost imperceptible once in place, the Summer Cap Foil P1 is forgotten during the ride. Yet its effectiveness is immediate: no more sweat in the eyes, better temperature regulation and lasting comfort.

Technical specifications:

- Brand: Assos
- Model: Summer Cap Foil P1 – 2026
- Type: Summer under-helmet
- Colour: Grey Series
- Sizes: 48–56 cm and 57–63 cm
- Construction: Seamless, low-volume
- Protection: UV
- Fabric: Ultra-breathable and quick-drying
- Function: Sweat management and cooling effect
- Feel: Ultra-lightweight, second-skin feel
- Composition: 66% Polypropylene - 19% Polyester - 10% Polyamide - 5% Elastane

Assos Size Guide