NWT Oofos OOmg Sport LS Shoes Size 8.5 Features a midsole accentuated by a tapered sidewall, paired with a 4-way stretch FibreFlex upper Includes an integrated lacing system for adjustable heel and midfoot lock, and a closed-toe silhouette Lightweight and flexible, the OOfoam technology absorbs 37% more impact than traditional footwear Patented footbed design reduces stress on knees, ankles, and other joints Closed-cell foam is machine washable and designed to minimize odor