Full90 Performance Soccer Headgear Premier, Black, Large Features an Advanced Tru-Fit System(TM) which includes the X-Band design and interchangeable occipital back padding.Large (6 7/8-7 3/4 213/4"-24 1/2")The x-band design has a lower profile, a lighter weight cross-strap construction, and comes with fabric that helps accelerate moisture evaporation.This allows the premier to better conform to the shape of the head, improves "the feel" of the ball as it makes contact with the head, and significantly reduces moisture build-up.The interchangeable occipital back padding comes in two sizes; ocp-1 and ocp-2 for more or less coverage of forcebloc foam for the occipital area of the head. The X-Band™ design has a lower profile, a lighter weight cross-strap construction, and Coolmax® to help accelerate moisture