The famous Acorn Slipper Sock has been warming the feet of astronauts since 1982. Wool and cotton fabric upper with knit sock design offers comfort and warmth for a cozy feel. Memory foam footbed over a comfort cushion EVA midsole gives your feet the relaxation they deserve. Durable leather outsole offers grip indoors and out for to guarantee sure-footing. Hand wash cold, air dry. Imported. Measurements: Weight: 6 oz Shaft: 11 1 2 in Product measurements were taken using size 2XS (US Womens 5-6), width Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.