Birkenstock Blue Footbed Sport.BIRKENSTOCK Blue Footbed Sport brings the feeling of natural walking to your enclosed shoes. Its heel cushioning and stabilizing design helps support the natural arch of the foot, making it ideal for anyone looking for the unique comfort of BIRKENSTOCK. Enjoy a sand-like sensation with every step.Anatomical footbed shape.Excellent heel stabilization.Optimum damping.For modern business, leisure, and sports shoes without a heel