Size - One size fits most, standard size of 57cms. Fits most head size above 14 years. These flat cap are popular, great ideal for summer and hot weather, good quality. Material and Function - 35%Cotton, 65%Polyester, nice weave and breathable. The caps attach in the front to a hard brim that both provides protection from the sun and helps the cap keep its shape. Men's Classic Cap - FabSeasons Caps are the quintessential caps for men. It is a excellent casual-wear cap. Classic shape, solid color design. Usage Occasion - You can wear this cap in many occasions, as a fishman hat, a driving hat, a hunting hat and a golf hat. The hats are well made and nice packed, if you are finding gift for family members or friends, they will be a good option.