Wholesale Wool Blend Flexfit Yupoong Flat Bill Blank Snapback Hats w/ Green Underbill (Two-Tone, Black/Red) - 20593 100% Acrylic 80/20 acrylic/wool (camo is 60/40 cotton/polyester). Structured, high-profile, six-panel . Two-tone camos have a black undervisor. 3 1/2" crown.