The Buff Knitted and Polar Hat boasts performance, enhanced by the cozy design, which features a knitted exterior and warm polar fleece inner earband. Constructed with an active fit, its ideal for casual trail outings on cold days. Knitted and Great mountain pattern knit in. 100% acrylic knitted exterior. 100% polyester polar fleece inner earband for added warmth and next to skin comfort. Polygiene Active Odor Control neutralizes odor and stops the growth of odor causing bacteria and fungi. Cold weather thermal protection : 14f 41f. Embroidered BUFF logo. One size fits most adults.