95% Cotton, 5% Spandex Foam sole Easy on/off, hands-free, slip-on style with an open back Waffle knit upper lets your foot breathe, keeping your slipper sweat and odor-free; machine washable for easy care Memory foam insole molds to the contours of your foot for pillow soft comfort; slip on for instant relief from your work shoes or high heels Durable rubber sole lets you step outside the house to fetch the mail or walk the dog; anti-slip waterproof bottom grips the floor to keep you safe on wet tiles. Also available in matching men's two-tone slippers for family and couples Product designed and quality inspected in the USA, with a 24/7 US-based support team ready to take care of all your after-sale needs