Kalso Dabb Nubuck noir black Negative Heel Earth leather suede Men's shoe slip-on Loafers size 11 NWT New The original wellness shoe - feel the slip-ons of the negative heel design for a whole body wellness experience and a footbed design to energize and uplift every step. Helps to naturally improve posture, strengthen core muscles, and reduce joint stress Created by a Danish yoga instructor and inspired by yoga and the belief that wellness starts from the ground up.