【Product Specifications】This is a warm 2-piece set consisting of a knit hat and a neck warmer. Knit Hat: Ear protection length: 9cm, Head circumference: 55-60cm, Depth: 21cm. Neck Warmer: Height: 19cm, Width: 24cm. One size fits all. 【Heat Retention and Cold Protection】The outer material uses high-quality fabric, providing excellent wind resistance, cold protection, and heat retention. The lining is very thick, offering 4-5 times the heat retention of a regular hat and scarf, so you won't feel cold even when wearing it outdoors in midwinter, providing outstanding warmth. It perfectly wraps your head, ears, and neck, keeping you warm 24 hours a day. Experience warmth beyond your imagination! 【Excellent Elasticity】The knit hat uses premium stretch knit stitching, enhancing durability. It won't fold even when stretched outwards. The good elasticity makes it easy to move around, and the relaxed size doesn't feel constricting even when worn for long periods. Provides 24-hour stress-free comfort. Easy to wear, warm, and with durable stitching. 【Versatile Combination and Use】The hat and neck warmer can be used separately or together. Freely combine them to your liking, allowing you to feel warm while also showcasing a beautiful side of yourself. 【Various Uses】Suitable for going out, going to school, and going to work. Also suitable for cycling, motorcycling, skiing, and outdoor sports. Suitable for people of all ages and genders. It can also be used as a gift for family, friends, and loved ones.