The most classic model from OOFOS, the simple thong-style OOriginal. Retail price: ¥8,580 (with storage bag) The special OOfoam material used in OOFOS® products differs from the EVA material used in general midsoles, which are designed to generate forward momentum. OOfoam absorbs 37% more impact, reducing the impact on the soles of the feet upon landing. As a result, it can reduce the burden on the knees, hips, and back. In addition, the ergonomically designed footbed gently wraps the foot and firmly supports the arch.