This Hat Fabric Is Soft, 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, Light And Dry, Adjustable Double-Breasted Design On The Back, Free To Adjust The Size Of The Cap Circumference, Suitable For Many People To Wear, Strong Practicability, Suitable For Spring, Summer And Autumn.