Come and Check Our Promo Solutions.Made of polyester fabric and works to help keep you dry and comfortable. This one-size-fits-most cap features an adjustable velcr closure that delivers a snug, customized fit. The back opening is designed to allow you to comfortably wear a ponytail. Great hat for running, golfing, fitness, tennis, working out and casual wear. Pls check inventory and detailed info with us before placing your orders.