Thank you for viewing! 【Warm & Excellent Heat Retention!】 Made with ultra-fine flannel fibers, it traps air between the fine fibers, preventing warm air from escaping. The high density and firm fibers also minimize shedding. The fine nap of the fitted sheet adheres closely to the skin, allowing you to spend your time comfortably while being enveloped in warmth. The flannel fitted sheet uses heat-retaining cotton for the filling. The heat-retaining cotton absorbs heat from the body, preventing the entire body from getting cold while sleeping. The warm fitted sheet allows you to sleep soundly even on cold winter days. 【Antibacterial, Odor-Resistant, and Anti-Static Processing】 Uses Teijin's functional fiber "Mighty Top II ECO" for the filling. The heat-retaining filling is antibacterial, odor-resistant, and anti-mite treated to suppress the odor of sweat and the proliferation of bacteria. It can protect your skin well. Conventional fitted sheets tend to accumulate static electricity, causing unpleasant shocks. The warm fitted sheet has a double anti-static treatment to prevent those annoying shocks. Even those with static electricity sensitivity can use it with peace of mind. *This does not completely eliminate static electricity. It is a processing that suppresses static electricity. 【With Reinforced Elastic Bands & Washable】 With reinforced elastic bands on all four corners, it can securely fix mattresses, beds, and futons from 3-27cm. It won't slip no matter how much you toss and turn. Easy to attach, making it easy to change. The fitted sheet uses durable materials, so you can wash it repeatedly and use it cleanly at any time. It is lightweight and compact, making storage and care easy. *[Material - Smooth and Luxurious Texture] [Material] Surface: High-density premium flannel fabric, Back: Waffle fabric, Filling: Heat-retaining cotton (100% polyester) The fitted sheet pursues not only warmth but also the feel of the skin. By using smooth and comfortable flannel fabric, it improves the comfort of sleep. The fluffy feel and warmth combine to warm not only the body but also the heart.