Super cooling summer jerseyDELTA OPTIC short-sleeve jersey. Using advanced fabrics from our partner Polartec, the DELTA OPTIC jersey is an aero-light, fitted jersey for performance training and racing. UNPRECEDENT FREEDOM OF MOVEMENTMade with Polartecs Power Stretch fabric featuring 4-ways stretch technology to allow excellent fit and superior freedom of movementBREATHABILITY AT ITS BESTRear panel constructed with Polartecs Delta fabric for a fast transmission of sweat away from the body, guaranteeing rapid drying and great breathabilityPERFECT FITSlim fit with raw cut sleeves that adhere to the muscles without being restrictive