The Dome Ruinart will keep your head warm all winter long, with AirShield(R) and AirShield(R) Microfleece. Full ear coverage and a stretch back panel make this one comfortable alpine hat. Features Windproof and breathable AirShield(R) microfleece has an exceptional warmth-to-weight ratio Soft Technofleece-lined ear band, with cutouts so you can hear! Stretch fleece backed panel creates a snug fit Materials Body: AirShield(R) Microfleece (100% polyester) Lining: Technostretch(R) Laminate: AirShield(R) AirShield(TM) Core is the only breathable windproof technology extensively tested to ensure its breathability won t deteriorate over time. It s a versatile, long-lasting solution for everything from lightweight cross-training jackets to day-to-day windwear.