This Super fashionable and trendy snapback hat is made of 100% Acrylic with a satin finish, which it made it feel like Nylon . Premium Quality Materials. It Features a "Cali" 3-D High Definition Embroidery on Front Panel and on Back panel with an all over Cosmos Pattern, including Undervisor. OSFM (One size Fits Most) Snapback Closure. Comfortable fit and Premium Quality Finish while keeping up with current trends. Official Headlines Headgear.