Main Material: Polyester Color: Gray only Specifications: Knit 【-10°C Cold Protection】The ear part is large, providing excellent windproof and heat retention! This ear muff is overwhelmingly popular for its high quality, combining warmth and durability, using the representative fluffy material of winter. The fluffy, rounded fur material reminiscent of sheep gently wraps the ears and keeps them warm. It provides a comfortable warmth with a soft touch and excellent heat retention. No need to worry about your ears freezing in mid-winter, even on the slopes! 【Adjustable Size】The arm part of the ear warmer has moderate elasticity, using a flexible slide rail-type frame, so you can slightly adjust the size according to your head size. It fits snugly because it hangs from the back of your neck! A cable-shaped piping is applied around the perimeter. By outlining the fluffy muff, it is finished stylishly. You can use it casually regardless of gender. It has a sense of stability, so it is difficult to slip off, and it is also recommended for sports! 【180-degree Foldable for Convenient Storage】This back-arm type ear muff allows you to not worry about your hairstyle! Simple and neat looks, and colors that blend in with your outfit, perfect for commuting to school or work. The arm part is made of a material with moderate flexibility. After use, you can make it compact by holding the left and right parts that touch your ears and twisting them, and store it in your pocket or bag. It's easy to twist with both sides, and it doesn't require time or effort, making it a very convenient foldable type for going out! 【Safe and Secure】Your ears are not blocked, and you can hear sounds while wearing it. Unlike flapper hats or headphone-type ear muffs, it's stress-free because you can easily hear the surrounding sounds even while wearing it. It can be used regardless of head size. Unlike headphone types, it won't be loose, and your head and ears won't hurt even if you wear it for a long time. It remains clean without any particular deterioration even if used quite frequently. It's made of a fleece-like material that is resistant to shedding and pilling. 【Great for Winter】The ear muff uses an exquisite fleece lining that provides a soft touch and warmth, enhancing heat retention. The surface looks warm, and the simple design gives a smart impression. It is recommended for commuting to work or school, as well as for those who work outdoors for long hours, when driving a bicycle or motorcycle, shoveling snow, camping, jogging, running, and walking.