Superfeet Trailblazer Insole Size:Size F knees are now velcro adjustable

knees are now velcro adjustable at the back and thigh pockets are button down with additional drawstring closure

Uses 1 x 275 mAh Li-Po battery (Built-In)

lining further enhances the suitability of the shoe for use as a lightweight

CUSHIONING MEMORY FOAM

Superfeet Trailblazer Insole Size:Size F knees are now velcro adjustableGreat for Hiking & Outdoor Footwear Superfeet TRAILBLAZER Comfort insoles stabilize your feet on uneven ground and enhance comfort, even on the roughest terrain. Made to replace the sockliner in roomy to moderate fitting athletic and outdoor footwear. Trim to fit your shoe size. A. DEEP HEEL CUP Helps prevent heel slip and toes from hitting the front of the boot B. MEDIUM TO HIGH ARCH SUPERFEET SHAPE Medium to high arch support in an orthotic shape