1. Attention: After placing the earmuffs on your ears, you can rotate them slightly forward (about 20 - 30 degrees). This may effectively prevent the earmuffs from falling off. 2. Lightweight and convenient: The ear - free design of the earmuffs is relatively convenient. It can protect your hairstyle, avoid tangling with your hair or headphone cords, and offer greater comfort compared to most circumferential designs. They can be worn under any hat, or over stud earrings, small hoop earrings, and even earplugs. They may not be suitable for wearing with large earrings. 3. Windproof and warm: The ear warmers are made of three - layer thermal materials, including wool, thickened flannel, and a windproof lining board, which can keep your ears warm. The lining board fits the contour of your ears, preventing cold air from blowing through the gaps in the fabric, so you may always feel warm and comfortable. 4. Essential winter accessories: They can help secure the winter earmuffs on your ears, preventing displacement caused by strong winds or air currents. Winter earmuffs are good accessories for winter outdoor activities such as skating, running, hunting, skiing, cycling, etc., providing protection for your daily life and travel.