Sugoi Men's Shift Vest Body : 100% Polyester / Tricot-Collar, CF Placket : 100% Polyester / Mesh - Vent : 100% Polyester Imported Reverse coil separating zip with guard for clean performance esthetic Zippered rear pocket doubles as a convenient storage pouch for the jacket Micro fleeced line collar with center back scalloped pattern for ergonomic comfort in the ride position