Type: Snap adjustment, suitable for big and small heads. Adjustable: Adjustable snaps for a universal head fit. No Velcro. Just press and hold the snap button and move the tail to the desired tightness Material: Made with 100% cotton to ensuring lightweight, durable and comfortable. Vintage and classic washed style never be out of style. Suitability in Different Scenarios: Great choice for regular daily use and outdoor activities especially like bush walking, fishing, running, hitch-hike travel, baseball, cycling, golf, tennis. Customer Service- We offer unconditional returns and replacements.