The STW Double BOA® has the same great comfort and easy flex but now with zonal lockdown control. Dual BOA® Fit System allows you to lock in your forefoot and control upper stability independently. BOA® Fit System delivers micro-adjustable, precision fit, engineered to perform in the toughest conditions. Features: 1:1 Lasting Dual BOA® Fit System Evolution Foam Outsole 3D Molded Tongue Internal Lacing System Heel Hold Syste Cozy Cuff Thirtytwo Stw Double Boa Womens Snowboard Boots - Black - 2023