2/3 Rain Cap P1

Assos 2/3 Rain Cap P1

The 2/3 Rain Cap P1 from Assos is a lightweight, waterproof cycling cap for cool, wet conditions, specifically designed to be worn under your helmet. The updated model features the elastic Airflow.1299 textile, which increases breathability while providing comfortable thermoregulation. This makes the cap feel at home during cool summer showers as well as on typical spring/autumn days in Switzerland. Thanks to its small pack size, it quickly disappears into your jersey pocket when the clouds clear.

• Airflow.1299: lightweight, highly elastic, waterproof main material with breathable zigzag structure.
• Low-profile construction: sits comfortably under your helmet without pressure points.
• Improved thermoregulation: retains body heat in cool, humid conditions.
• Reflective strip at the back for additional visibility in diffuse light.
• Small pack size: easily folds into your jersey pocket.
• Composition: 92% polyester, 8% elastane for durable elasticity and quick moisture transport.
• Designed for 2/3 (Spring/Fall) climate in the Assos layering system.
• Available as blackSeries variant with one size range (III).

Technical Details and Features

The heart of the cap is the Airflow.1299 fabric, a lightweight warp-knit with breathable zigzag structure that efficiently allows moisture to escape while protecting against precipitation. The flat, elastic construction ensures a pressure-free fit under your helmet, which is particularly noticeable on longer climbs and during intense intervals. For additional safety in grey drizzly weather, a reflective strip is placed on the back to increase visibility. The update compared to the previous version aims for more breathability, better insulation and higher elasticity – making the cap more versatile throughout the entire transition season. The cap remains very pack-friendly, so it can be quickly stowed away in changeable weather.

Applications and Benefits

Whether commuting through the Mittelland, training rounds around Lake Zurich, or changeable conditions at alpine passes – the 2/3 Rain Cap P1 keeps rain off your head and stabilises the microclimate. In Spring/Fall (2/3) setups, it perfectly complements light layers when wind, drizzle or cool showers are expected. During humid climbs, the high breathability prevents heat buildup, while the visor protects against drops and keeps the neck area pleasantly dry. Thanks to its low volume, the cap harmonises with modern helmets without affecting the fit. This gives you a noticeable boost in comfort and protection without complicating your setup.

Fit and Features

The cap is deliberately built low and stretchy so it adapts to different head shapes without pressure. Assos delivers the P1 as blackSeries in one size range (III), whose elasticity optimises the fit and prevents slipping. The material blend of 92% polyester and 8% elastane supports quick drying, feels soft to wear and remains dimensionally stable even after repeated packing. The design is rounded off by an unobtrusive reflective strip at the back, which provides a subtle visibility boost in dull, overcast weather. All in all, a functional, all-weather cap for the wet-cool days of the Swiss transition season.