The long sleeve wool Crewneck 200 is great for keeping the body's core temperature regulated in cool to cold climates. This Merino wool base layer shirt made from Woolpower's superior UllfrottA Original 200 g/mA^2 terry loop design features no lengthwise seams, minimizing chaffing and rubbing during peak physical activity. UllfrottA Original wool fabric with smooth, soft terry loops facing the inside and flat synthetic fibers lining the outside allows this wool shirt to optimally maximize body heat retention by trapping natural body heat as well as maximizing moisture wicking away from the skin. Crewneck 200 Merino wool shirt is the perfect wool base layer for hunters, skiers, hikers, and fly-fishermen & fishermen alike. UllfrottA Original Merino wool material Weight: 200 g/mA^2 Microns: 22.5 Base layer wool shirt Non-itch soft wool Circular knit wool fabric No lengthwise seams Elastic cuffs Machine washable wool Specifications 60% Merino Wool 25% Polyester 13% Polyamide 2% Elastane