Details The STW now with the Dual BOA Closure System. Lock in your forefoot and control upper stability independently. ThirtyTwo's all-new STW Double Boa has the same great comfort and easy flex but now with zonal lockdown control. Support Rating Soft Liner Comfort Fit: Constucted with dual density intuition foam allowing for moderate support and a soft flex, lined with micro fleece for superior warmth and comfort. 100% heat moldable for a customized fit. Internal Lacing System: Superior heel hold Construction 1:1 Lasting Dual BOA Closure System STI Evolution Foam™ Outsole 3D Molded Tongue Internal Lacing System Heel Hold System Fleece Collar Lacing Boa Lacing System: Dial precision Footbed Comfort moldable footbed Midsole STI Evolution Foam™ midsole Outsole STI Evolution Foam™ outsole: Lightweight Weight N/A ThirtyTwo STW Double BOA Women's Snowboard Boot 2021