Manufacturer recommends sizing up on the Oomg since it tends to run smaller than their unisex sandals. Dont let snowfall keep you indoors. Get out and explore with the help of the OOFOS Oomg Bootie! Highly packable upper can be compressed for easy storage. Man-made, water-resistant upper materials. Moisture and odor-resistant materials. Fully-enclosed bootie features the brands signature footbed design. OOfoam footbed cushioning technology absorbs impact, cradles the arch, and promotes natural foot movement. Traction pattern at the outsole. Imported. Measurements: Weight: 7 oz Circumference: 7 1 4 in Shaft: 4 in Product measurements were taken using size Womens 9, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.