The 661 comp am elbow guard is just the right protection for when the trail gets tough the internal hardcap provides great protection from the elements durability from 100d cordura outer liner along with the neoprene chassis ensures a strong and comfortable fit the 661 guard features velcro closures keeps the guard from slipping and stays put in place 661 comp am elbow guard features great protection with internal hardcap durability from 1000d cordura outer sn