Craft Sportswear Men's Wool Comfort Training Base Layer 1/4 Zip Jersey Shirt: wicking/cooling/aerobics/fitness/workout/sport/athletic/underwear/top 52% Polyamide, 43% Wool, 5% Elastane Imported Wool that provides warmth and comfort no matter if you are dry or wet Seamless design for optimal freedom of movement Flatlock seams that follow body movement Odor free by nature Craft is a Swedish brand specializing in clothing for endurance sports where performance and comfort are crucial for a good result