This Hat Fabric Is Soft, Comfortable And Breathable, The Brim Is Strong And Textured, Simple But Not Deformed, Sunshade And Sandproof, Durable, Good Heat Resistance, The Top Of The Hat Is Reinforced, The Front Of The Hat Is Lined With A Sponge Composite Layer, Comfortable And Stylish To Wear, And The Back Of The Hat Is Used Encrypted Pc Mesh, Good Ventilation Function, Natural, Comfortable And Breathable, Light And Dry, Adjustable Double-Breasted Design On The Back, Free To Adjust The Size Of The Cap Circumference.