OTTO CAP 6 Panel Low Profile Mesh Back Trucker Hat - Recycled Cotton Blend Twill OTTO CAP 6 Panel Low Profile Mesh Back Trucker Hat, The #1 Eco-Friendly Hats on Earth!. Low-Fitting design for a more casual and laid-back style; The Mesh Back is made entirely from 100% recycled polyester materials; Think Green by choosing eco-friendly hats that minimize pollution and conserve resources; Structured Firm Front Panel design provides a sturdy and defined shape for a polished look; Seamed Front Panels with Buckram provide durability and a stable surface for your artwork; Premium Premium Durable Plastic Snap Closure for easy adjustment and a secure fit; Matching Fabric Undervisor and Color Sweatband adds a stylish finish and cohesive look