Officially licensed by the MLB Players Association. Exclusive to Aced Out Clothing. 100% cotton twill. Garment washed and pigment dyed. Low profile, six panel styling. Unstructured. Hook and loop (Velcro) closure. Sewn eyelets. Hat manufactured by Port & Company. ~Please note our Return Policy: Customers are responsible for all shipping charges on all returned items. To qualify for a refund the item must be in its original condition and not worn (the bill cannot be compromised) If you have any questions, please contact us directly