Thirtytwo STW Double Boa Snowboard Boots 2021DESCRIPTION: The all new STW Double Boa has the same great comfort and easy flex but now with zonal lockdown control. FEATURES: Flex: 3 (1 Soft 10 Stiff) 1: 1 Lasting True half sizes 3D Molded Tongue For easier lacing and an even flex throughout. Grip & Rip Heel Hold Comfort Liner Heat moldable dual density Intuition foam and integrated lacing. Comfort Harness Grip and rip heel hold velcro heel overlay prevents heel slippage. Double Boa Dual zone