OOFOS OOcloog Unisex Open Back Clogs Black Matte SyntheticThe OOFOS OOcloog is a casual unisex open back clog that brings unmatched comfort into your everyday work or leisure routine. These OOFOS OOcloog Black Matte Synthetic Unisex Shoes have the following features: 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 Reduced stress on sore knees and back