This helmet can be used as necessary protective gear for skateboarding, in-line skating ("rollerblading"), roller derby, and scooters. This helmet is not for bicycle use. The patented Sweatsaver™ liner helps eliminate the smells, the stinging and the eye blurring that occurs from sweat. This revolutionary liner has moisture-wicking layers that limit sweat drippage, an anti-bacterial treatment to make it virtually stink proof, and a 360° wrap around design so that there is absolutely no liner separation. With the terry cloth construction, you can kiss that itchy head feeling goodbye.