Ear Mitts® are designed to fit securely on your ears, keeping them protected from the wind and cold. Three layers - durable faux leather, 100 gram ThinsulateTM Insulation from 3M, and a DuPontTM Teflon® fabric protector infused anti-pill fleece inner lining - keep warmth in and the wind and cold air out. A patented flexible polypropylene frame adjusts to your ears and becomes more comfortable the more you wear them. A stylish alternative to traditional scarves and band ear muffs, Ear Mitts® provide warmth and comfort without interfering with your hairstyle! They also fit comfortably under helmets, caps, stocking hats, hard hats - any headgear! The design permits unrestricted hearing during use. Compact enough to fit in a pocket, fanny pack, back pack, or hand bag. Available in fleece, denim, faux fur, faux leather, faux suede, velvet, sparkle, and embellished with Swarovski Crystals - See our other products on Amazon!HOW TO PICK YOUR SIZE:Most customers find that our Regular Size Ear Mitts Bandless Ear Muffs fit about 85% of the population. Please remember that Ear Size does not relate to your age, sex, height, or weight.The Smaller Size has a 10% smaller opening for your ear (please see Sizing Specifications diagram in the Product Images above). If you are a person with petite features...smaller hands and feet, you might want to try our Smaller Size.In the case of a child, please note that you have to go on a case by case basis, because some children can use the Regular size.