Built with input from multiple World Champion Brian Lopes, this is the All Mountain shoe for Epic rides. Its extremely efficient X-Alp bottom unit has the walkability of an aggressive trail running shoe. P.R.O. 1:1 Anatomic Buckle Closure: follows the natural anatomic shape of the foot toeliminate hot spots and remove pressure from your instep; and an adjustable instep strap with adjustable buckle mounting plate delivers ultimate fit and flexibility. Energy Cell technology in heel crash pad for ultimate cushioning when off the bike.