【Online Retail Price】 ¥5,699 【Size】Double 180 x 200cm 【Color】 Greige 【Full Use of Thinsulate】Thinsulate is a lightweight and warm material that combines ultimate warmth and comfort. It's about twice as warm as down of the same thickness. VK LIVING supports Japanese environmental protection initiatives and has introduced EC-type 3M Thinsulate insulation material, which will also be adopted by luxury brands from 2025. For each product purchased, it contributes to the reduction of approximately 170 grams of CO₂ emissions. It achieves a harmony of warmth and eco-friendliness. Note: Two types of Thinsulate will be shipped randomly, but the insulation effect is the same, so please rest assured. 【LockHeat Rapid Heat Generation Fiber】The uniquely developed heat-generating and heat-retaining functional fiber "LockHeat" achieves unparalleled sustained heat retention with three features: constant temperature seven-hole fiber × moisture absorption heat generation × rapid temperature increase. The seven-hole hollow fiber traps air and keeps body temperature. Moisture absorption heat generation generates heat itself, warming you from the core. The spiral structure locks in heat, with 198% higher heat generation than general polyester. You'll be enveloped in deep warmth that lasts until morning. 【Airy Filling】VK Living evolves the concept of heat retention. The "Airy Filling," which combines fluffiness and high heat retention, has been added to the 2025 model. Countless ultrafine fibers contain more air even with the same volume, and the fluffiness continues even after long use, and the hollow structure firmly traps air, keeping you comfortably warm. 【Ultra-High Density Flannel】Ultra-high density flannel, with increased thickness and grammage, traps plenty of air, achieving rapid warmth and sustained warmth, and won't lose to the cold winter! Compared to conventional products, the heat retention efficiency is improved by about 20%, and you can feel a +2 to 3°C increase in perceived temperature even at a room temperature of 20°C. You'll feel warm the moment you get into the futon. By increasing the grammage of the flannel, the effects of heat retention and heat storage are sustained for a long time, providing a more comfortable sleep throughout the night. 【Non-Photocatalytic Antibacterial】Non-photocatalytic oxygen activation provides continuous antibacterial and deodorizing effects 24 hours a day, as long as there is air. Low formaldehyde, so it's safe for children. Antibacterial, deodorizing, and anti-mite effects last even after washing. ※Good condition, used only once. ※We inspect carefully, but there may be oversights. We cannot respond to complaints after the receipt evaluation, so please contact us before the evaluation if you have any concerns.