The STX Cell IV Shoulder Pad is built to be lighter, more flexible, and breathable. Made with GeoFlex II technology, these shoulder pads are light and 25% more flexible. You’ll be able to move more freely while carrying even less weight. STX has included a new breathable protection system which allows air to flow through the Cell IV shoulder pad to help keep you cool and dry. Along with the GeoFlex II technology, STX has included 7-point stretch zones on the Cell IV shoulder pad to allow a full range of mobility. When it comes to fit and customization, STX has implemented an adjustable strap system which allows you to customize and secure your perfect fit.