OYUKI Hitatech base layers were developed specifically for those who prefer a synthetic performance garment. Made to be super warm with superb moisture wicking properties, Hitatech draws perspiration away from your body, keeping you dryer and warmer. Designed with a four way stretch and chafe free seams, these base layers move with you for unrestricted mobility.Temperature regulation: Hitatech moisture wicking technology draws perspiration away from your body, keeping you dryer and warmer.Superior performance: Made with four way stretch material and chafe free seams, Hitatech moves with you for unrestricted mobility.Travel friendly: Hitatech garments are multi-use travel essentials. They pack down small, provide UPF 50+ protection against ultraviolet rays and prevent unwanted odors with Agion anti-stink technology.FEATURES: Unisex 220gsm Hitatech Agion anti-stink technology Crew neck Flat lock seams Thumb holes 220 gsm midweight base layer, 93% polyester, 7% spandex