versatile, new, sustainable boot in the salomon line. the echo lace s boa® embodies the versatility of an all-mountain boot with a sustainable, eco-friendly design.featuring str8jkt boa® pro, a three-point heel strap that prevents heel lift, the echo lace offers a precise fit and response. this boot uses innovative, eco-friendly materials for support, comfort and durability so you can enjoy your days on the mountain that little bit more.outer bootthe salomon mtn goat outsole offers long-lasting durability and best grip, while rubber caps on the toe and heel ensure a firm grip between shoe and binding. in addition, contagrip® rubber ensures absolute grip on any terrain. linera medium supportive flex combined with the anatomically shaped precision liner provides comfort and best adaptability, while the quickdry insole ensures a pleasant foot climate. the liner is rounded off with the ortholite eco hybridâ„¢ footbed.lacing systemthe powerlock lacing system offers criss-cross lacing and anti-catch hooks for quick and secure lacing. many riders continue to trust the classic lacing and appreciate the easy swap-out when the lacing breaks. str8jkt is an additional boa® lacing in the heel area, for best hold in the shoe and optimal comfort. in addition, the power strap provides even more support in the boot.