OTTO CAP Boonie Hat, Highly Demanded Summer Hat!. Unstructured Design - For a more flexible and comfortable wear, conforming to the shape of the head Wide Brim - Provides ample sun protection for your face, neck, and ears Binding Trim - Helps reinforce the edge of the brim, providing structure and durability Black Cord with Lock Mechanism - Allows you to secure the hat in place by tightening or loosening the strap UV Guard Technology - Blocks harmful UV rays Micro Mesh Standard Performance Sweatband - Moisture wicking technology for dry, all-day comfort