OOFOS Ooahh slides. OOfoam technology absorbs 37% more impact than tradition foam to reduce stress on feet, knees, and joints. These soft sandals are designed with strategic arch support and a diamond-grid footbed pattern to promote natural motion. Perfect for summer vacation. Machine-washable OOfoam upper Slip-on Round open toe Moisture- & bacteria-resistant lining Foam sole Excellent condition; Like New; Worn once.