Material: Polyester (90%), Elastane (10%). Q-Wic Plus lightweight polyester/ elastane fabric. Anti-bacterial odour control treatment. Good wicking performance. Quick drying. Racer back design. The Modernize II Vest is made from Q-Wic Plus fabric to pull sweat away from your skin with built-in anti-bacterial odour control to keep you fresh. It features a scooped round neck and shape-defining side seams.