The 686 Speed Lace 580 Snowboard Boots are based on the MT580Trail Sneakers and have been utilized in coordination with 686 to create a comfortable, state-of-the art boot that helps you perform at your best on the mountain. The SLC Zonal Speedlacing System offers an upper and lower Quick-Strike Velcro Strap to ensure that you have the customized, comfortable and easily adjustable fit you want. The 3-Dimensional Thermoplastic Injected Heelstay provides you with great stability and durability. There is also an articulating cuff with a high frequency molded hinge to help with the flex while maintaining strong support. The 686 Speed Lace 580 Snowboard Boots have a Harness Liner Lacing which situates the liner and the heel in position inside the boot so all your movement throughout the day doesn't compromise the position of the liner. This liner is also has an anti-microbial coating to combat the odors that come from your feet after a long day of shredding. For stability, traction and comfort, look no further than the 686 Speed Lace 580 Snowboard Boots.