The Bauer NG 37.5 Premium Compression Hockey Jock Short is the next generation premium compression jock. These are a breathable and snug-fitting jock short that provide great coverage to your vital area. 37.5TM technology is infused in the polyester to use your body heat to evaporate the moisture around your skin and the surrounding fabric, keeping you cooler.Any fabric that has 37.5TM integrated in it will dry up to 5 times faster than other similar fabrics and have an anti-odor feature that rejuvenates each time you wash it. The protective cup included is held in place with an elastic suspension system so you"re always covered. Mesh inserts throughout the jock increase air circulation and Velcro socks tabs keep your ice socks from falling. Youth MuellerTM ergonomic molded cup included for Junior sizes and Adult MuellerTM ergonomic cup included form Senior sizes.Model Number: 1042844Fit Guidelines: Compression FitBauer"s Sizing Guidelines:Short Size / Waist Size (Jr / Yth)XS / 22.5" - 23.5"SM / 23.5" - 24.5"MD / 24.5" - 25.5"LG / 25.5" - 27.5"XL / 27.5" - 29.5"