Mavic cosmic elite thermo ls jerseythis stretch jersey is constructed with a soft and stretchy fabric for optimal fit and warmth perfect for extra warm layering on the coldest days or as an outer layer in the spring and early fall features material polyester 73 elastan 27 extremely soft highly stretchable brushed fabric for warmth fit moisture management and comfort stretch knit fabric with soft fabric inserts let you move easily lighter and wider exo grip provides maximum grip and ela