Hat Fabric Soft, Comfortable, Breathable, Brim Sturdy Texture, Simple And Not Deformed, Sun And Sand, Durable, Heat-Resistant, Reinforced Cap Top, Cap Front Lined With Sponge Composite Layer, The Back Of The Hat With Encrypted Pc Mesh, Breathable, Natural, Comfortable, Breathable, Lightweight, Dry, The Back Of The Adjustable Double-Breasted Buckle Design, You Can Adjust The Size Of The Cap Circumference Freely.