Rising tides arent a problem with the Speedo Surf Knit. Speedo Sizing Tip: This shoes runs true-to-size to slightly large. You may want to size up from your standard street shoe size. Ideal for use during water aerobics and aquatic fitness classes. Easy slip-on design. Mesh textile upper. Heel pull loop. Unlined interior. Textile footbed. S-TRAC outsole delivers maximum drainage and traction. Imported. Measurements: Weight: 8 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.