KALSO EARTH SHOE Men's Classic 2 (Black 10.5 M) Leather Upper Soft leather upper with tonal stitching for added style Lace-up closure with metal eyelets offers a secure, customized fit Form-fitting footbed with BioFoam cushioning molds to the shape of the foot to displace and absorbs shock Anatomic arch support maximizes the effectiveness of the heel design to promote a natural walking motion Kals Negative Heel Technology positions the toes 3.7 higher than the heels to help strengthen and tone the body