【Super Easy 2-Way】 It's just a tube, so it's easy to use as either a knit cap or a neck warmer, making it very convenient. 【Excellent Elasticity】 Because it's made with a ribbed knit, it's easy to put on and take off. It fits just right and doesn't feel constricting. 【Knit Cap】 The deep design covers your ears and can be pulled down to cover your neck. 【Neck Warmer】 Because of its length, it can be a voluminous neck warmer. Keeps your neck warm. 【SUMISEN: Charcoal Fiber Yarn】 The far-infrared effect that charcoal naturally possesses warms your body. Warming the body activates metabolism and gently alleviates bodily troubles. 【Special Fiber: Effect Lasts Almost Permanently Even After Washing】 The fabric is woven with regular cotton yarn and charcoal yarn, so the effect lasts almost permanently even after washing. The black spots are the charcoal fibers. Size: Length: 24cm, Width: 30cm Color: Gray系 (Gray-based)