Update 3/17: these are selling out quickly! Sizes are limited, but Nordstrom has select Women's MBT Shoes up to 45% off. The M Walk lowers from $244.95 to $129.90 and the Kaya Mary Jane drops from $249.95 to $164.90. MBT, or Masai Barefoot Technology Shoes, are a revolutionary approach to footwear that help relieve back pain, improve circulation and posture and help tone muscles. These shoes are very popular and rarely discounted, so act fast to get in on the savings. Shipping is free with any shoe order via code SHOES. Sales tax is charged in states with Nordstrom retail locations.