Color: Black Size: One Size Fits All Adjustable Size: Head circumference up to 50-57cm, easily adjustable with Velcro at the back. The forehead width is 7.5cm and the ear cover width is 12cm, providing ample coverage and warmth. Comfortable for children and adults alike. "Latest Cold Weather Earmuffs" Unlike traditional earmuffs, these are slip-resistant and durable. They stay in place no matter the activity. In addition to covering your ears, they also function as a headband, protecting your forehead from the cold. Great for both indoor and outdoor use. Don't worry about getting them dirty from rain or sweat; they are made from material that can be easily hand-washed or machine-washed, allowing you to maintain cleanliness at all times. "High-Quality Material Cold Weather Earmuffs Protect Your Ears in Winter" The inside is made of "ultra-fine brushed" fleece material. It has a soft, cloud-like feel that gently envelops your ears. This fine brushing creates a layer of still air, providing higher insulation than ordinary materials. It effectively protects your ears from the cold. Furthermore, it features "sweat-wicking and quick-drying" properties, quickly absorbing sweat and drying rapidly. Even when you sweat, it won't feel sticky, ensuring continued comfort. The high-quality material is anti-static, breathable, resistant to pilling, and colorfast. "Stress-Free with Glasses & Helmets" These ear warmers are designed with practicality in mind. Firstly, they have dedicated holes for the temples of glasses, allowing you to wear them without your glasses slipping or compromising warmth. Additionally, they are very lightweight and highly elastic, so they won't feel tight or constricting when worn with ski or cycling helmets. "From Everyday Use to Outdoors, an All-Rounder" The simple and stylish design of these ear warmers blends naturally into everyday fashion for both men and women. Perfect for a little extra warmth during commutes to and from school or work. They are ideal for everyday activities like running, jogging, cycling, and walking, as well as for more serious outdoor pursuits like skiing and hiking. Their lightweight design makes them easy to store in a bag and quickly pull out when the cold hits.