A waterproof, knit beanie- Designed for cold and wet weather- Soft to the touch, insulative and breathable Acrylic and polyester are synthetic fibres, engineered to perform. Both acrylic and polyester have moisture-wicking characteristics, helping ventilation throughout the garment. Our products are designed to last, defying the elements time and time again. A warm, waterproof rib knit beanie, at home in mountain ranges and the city. Highly insulative, the Gressenhall is designed for cold environments. Acrylic and polyester are made from strong, long-lasting yarns, forming an extra-durable, tight knit. Complete waterproofness sets the Gressenhall apart from other knitted hats. An eco-friendly Teflon coating makes water bead up and roll off the surface. Aquasealz membrane is fully waterproof and breathable.Interior – Microfleece lining is insulative and soft to the touch, enhancing comfort. Mid-Section: Aquasealz Membrane