The Spika Thermaflow top will bring extra warmth in colder conditions. The 220gsm unique weave fabric is designed to insulate and breath at the same time. The jacquard 93% polyester 7% spandex fabric provides high levels of comfort and moveability and its textured brush finish retains heat while the canals help transport warmth throughout the top. This highly technical garment is designed to keep you going in any condition with moisture wicking and antimicrobial treatment to limit the growth and reproduction of bacteria.