Product Details     Flex Lacing Style: 203191W24 The Burton Ion Step On® Snowboard Boot is the stiffest boot in Burton’s Step On lineup. The stiffness ensures high-performing responsiveness and power. The stiffness, along with Burton’s most advanced liner, makes this boot perfect for aggressive riders who like charging fas and need shock absorption over bumps. Burton’s one-of-a-kind Snugger Strap locks the heel into place, which is ideal for making turns and for those who love to carve up the mountain. KEY FEATURES Unique Snugger Strap design builds heel hold into the outside of the boot with a separate Boa® zone focused just on this area Life Liner offers more rebound with less weight by using upgraded foams and synthetics in the construction Step On®-compatible design works exclusively with Burton Step On® Bindings SPECSFlex: StiffLacing: Boa FEATURES Medial and lateral support gives the Tuff Cuff Lite technology inside the boot the ability to free up flex from heel to toe while still ensuring solid heel hold Vibram® EcoStep Outsole provides enhanced traction on winter surfaces, improving your trip up to the summit or out to the car Boa® on the Snugger Strap makes it easy to dial in a fit that eliminates heel lift Speed Zone™ quick lacing for the main body of the boot locks in your fit in two discrete zones with just a simple pull on the cords DRYRIDE Heat Cycle™ lining wicks moisture away for feet that are drier, warmer, and smell better at the end of the day 1:1 Firm Flex PowerUP Tongue is designed to fit closer to your foot for improved hold and support Step On® Backstay is designed to integrate efficiently with your Step On® bindings while providing excellent support Burton Ion Step On Snowboard Boot (Men's)