This long sleeve base layer is made from a soft, warm merino wool. The fabric’s unique properties of fast wicking of sweat, warmth, breathability and flexibility mean it thoroughly insulates while maintaining a constant body temperature. The close-fitting cut of the garment delivers a perfect fit, providing excellent cold weather protection during winter. Main advantages Cold weather long sleeve insulating base layer. High collar delivers maximum neck protection. Fast wicking fabric quickly removes sweat away from skin. High degree of fabric elasticity combined with flat seams ensures really comfortable fit. Highly breathable material ensures optimal body temperature. Composition: 51% Merino Wool, 49% Polyamide. Main Material - Merino Winter