Designed for all-weather protection. The key is the Gore-Tex membrane - strong, durable, and ristant to penetration after exposure or contamination by substances such as oils, fuels, and insect repellents.
Durable waterproof - liquid water cannot penetrate the Gore-Tex insert, so your head stays drier in wet weather
Breathable - allows perspiration vapor to escape from the headwear, so your head will feel more comfortable
Windproof - blocks the wind, keeping your head warmer and more protected on windy days