adidas Men's adiZero Crazy Light Cap 100% Polyester Imported The adiZero Crazy Light was designed to be the lightest performance cap to date, with unique materials and construction such as stitchless seams. It also delivers with essential function like UPF protection from harmful UV rays, moisture-wicking inner front panels, anti-glare undervisor and low-loft hook-and-loop adjustment. The gradated print binding sets the look apart.