100% Cotton Men's 6 panel adjustable cap Unstructured twill and self adjustable strap with metal clip Stone logo front embroidery with Volcom back flag label One size Head circumference : 22" (57 cm) Built to last and designed to endure, our custom hats are backed by pure integrity. The Full Stone Dad hat for offers a soft and breathable 100% cotton construction and a six panel FLEXFIT® design to ensure a snug and proper fit.