BOA Fit System closes the whole boot at the twist of a dial; TX3 textile laces give a more natural feel while reducing weight; Sierra delivers a precise fit via 1:1 lasting, which means a specific shell, liner and footbed for every full and half size; Relaxed flex delivers all-day comfort and is ideal for mastering turns and venturing into the park; Bombproof BOA H4 Coiler increases the speed of entry and quickly takes up lace slack; Awesome foot hold that starts right inside the liner, with 3D molded material and J-bars around the ankle; Bronze liner features integrated lacing with a low-profile lace lock for a secure fit; 3D Single Density Insole is anatomically designed to cradle your foot and constructed from a single piece of comfortable EVA; Unique asymmetrical design co-developed with BOA for optimal support and flex; Upper boot cuff is asymmetrically connected to the lower boot, allowing the ankle to flex naturally and providing great support without shell distortion; Made from advanced memory foam, moldable liners adapt to your foot shape over time or can be heated for an instant, personalized fit