Mountain Hardwear Peat Beanie 100% Acrylic 100% acrylic provides warmth and durabilityBody, 100% acrylic Recycled polyester microfleece-lined ear band for comfortLining, 100% recycled polyester microfleece 2" brim for full face coverageAvg. weight, 3.3oz / 93g Soft and comfortable Warm and cozy