Castelli Core short sleeve T-shirt WhiteThe Castelli Core Seamles Short Sleeve Base Layer is designed to keep you warm and dry thanks to the blend of polypropylene and polyester, but without compromising the comfort of seamless stretch. It guarantees a high level of warmth for days with cool and cold temperatures.  Castelli Core short sleeve T-shirt WhiteThe Castelli Core Seamles Short Sleeve Base Layer is designed to keep you warm and dry thanks to the blend of polypropylene and polyester, but without compromising the comfort of seamless stretch. It guarantees a high level of warmth for days with cool and cold temperatures.Product characteristics:84% polyester / 16% polypropylene for softness, moisture management and excellent stretch fitSeamless construction ensures additional comfortLighter on the side panels and at the backLower neckline, ideal to wear under low neck jerseys Reference: 4520575001