OTTO CAP 6 Panel Low Profile Mesh Back Trucker Hat, The 1 Eco-Friendly Hats on Earth!. Low Profile - Shallow crown for a relaxed, casual fit Think Green - Choose eco-friendly hats that minimize pollution and conserve resources Mesh Back - Made entirely from 100 recycled polyester materials for enhanced airflow Plastic Snap - Premium durable closure for a secure fit and easy adjustment Structured Front Panels - Full buckram construction delivers a firm, defined shape that holds its form for classic comfort Standard Cotton Twill Sweatband - Provides soft, reliable comfort all day long