Ear Muffs, Ear Covers, Ear Warmers, Ear Protectors, Cold Protection, Black Ear Muffs, Cold Protection Color: Brown M Size Boa Size M: 8.5 x 6.7cm L: 10 x 7cm For commuting, going to school, walking, jogging, running, and taking a walk! These are convenient ear muffs that keep your ears warm while not messing up your hairstyle, and are small enough to carry in your pocket.