Features DST (Durable Stretch Technology) constructed of four-way HEX-Stretch fabric provides excellent mobility with heavy-duty durability Strategically placed stretch-mesh ventilation & laser-cut perforations in key areas for advanced airflow Leather heat shield panels fastened with high-tension, heat-resistant Aramid stitching Seat panel sewn to breathable light mesh reduces pulling Advanced elastane liner adds increased comfort & performance The BOA® Fit System offers fast, on-the-fly micro adjustability Ergonomically pre-shaped knee accommodates most guards Full-Floating durable 900D seat surrounded by HEX-Stretch material moves naturally with your body Exclusive zipper lock system keeps pants closed & secure BOA® Fit System The BOA® Fit System is a system for precise adjustment of the closure & thus also the fit. It is made up of a precisely adjustable twist closure, a lightweight yet very durable rope & low-friction rope guides.