【Multiple Insulation for Ultimate Warmth】① "Contact Thermal Sensation Q-MAX 0.08" 8mm Long Pile Microfiber ② "Moisture-Absorbing Heat Generation & Heat Retention" Acrylate Wadding + TEIJIN Antibacterial & Odor-Resistant Wadding ③ "Heat Storage & Insulation" Heat-Retaining Wadding ④ "Cold Air Blocking" Aluminum Sheet ⑤ "Refreshing & Durable" Recycled Peach Lining. This shikipad keeps you warm even in cold winters because it repeatedly generates heat, retains heat, and insulates while you sleep. 【Contact Thermal Sensation & Fluffy, Smooth Touch】 Q-max is a value that quantifies the transfer of heat from human skin to an object; the smaller the value, the warmer it feels. Our shikipad fabric has a Q-MAX of 0.095, providing instant warmth and coziness upon contact. The shikipad has 8mm long threads and excellent density, making it fluffy, soft, and able to trap a lot of warm air. 【Moisture-Absorbing Heat-Generating Acrylate Wadding + TEIJIN Antibacterial, Odor-Resistant, and Anti-Mite Wadding】 It absorbs moisture such as sweat from the body, generates heat, and warms the body. Using "Teijin Mighty Top II ECO" antibacterial, odor-resistant, and anti-mite wadding, it suppresses the growth of bacteria and provides odor-resistant and anti-mite effects. Our shikipad can be used with peace of mind even by small children. 【Heat-Retaining Wadding & Insulation】 Using heat-retaining wadding, it locks in warm air, retains the heat, and gently envelops the body with natural warmth. 【Aluminum Sheet Included & Insulation】 The aluminum sheet in the shikipad is a newly developed material that prevents the retained heat from escaping and insulates against cold air from the outside. 【Easy to Attach/Detach & Washable】 The four corners of the back side have "Reinforced Dobby Rubber Bands," so it can be securely fixed to futon or mattress and does not slip even when you turn over. Easy to remove and attach. You can use it comfortably. We recommend using a laundry net when washing in the washing machine.