The STW Double BOA has the same great comfort and easy flex as the STW, now with zonal lockdown control. The Dual BOA Fit System lets you lock in your forefoot and control upper stability independently, delivering micro-adjustable precision fit engineered to perform in the toughest conditions. Dual BOA Fit System with independent forefoot and upper zones Easy medium flex, forgiving all day Micro-adjustable precision fit Comfort-focused liner and cushioning Great all-mountain and park boot