Rubber sole Soft-Air Technology Provides Comfort. The SOFT-AIR midsole is flexible and soft, reduces the shock from walking, protecting your feet, joints and vertebrae. The footbed made of 100% natural cork has the ability to mold to the shape of your foot, creating healthy walking support for your feet. Made In Europe Handmade by master shoemakers European Made, Soft-Air Technology, Ultra Comfort, Flexible Midsole (NO ORIGINAL BOX)