Meidai Co., Ltd. Sleeping Bag Warm Sleeping Bag more hot Dandan Attaka 4-WAY Sleeping Bag Stored after opening for product confirmation after purchase. Excerpt from the purchase site description: ■ As disaster prevention supplies ■ As a wearable blanket, a comforter, or a lap blanket ■ For outdoor activities and disaster preparedness ■ Reflects body heat with an aluminum sheet and insulates with the filling, keeping you warm even in severe cold ■ For those who want to save electricity and stay warm and safe without relying on electric blankets or heating ■ You can take your hands out from the arm-out zipper, so you can operate your smartphone, read, or work at your desk while staying warm like a wearable blanket ■ Compact storage, and it transforms into a cushion when put in the storage cover ■ Needle processing the filling on both sides of the aluminum sheet achieves heat storage, insulation, and breathability! Furthermore, it suppresses the rustling sound of the aluminum sheet ■ Machine washable! Always clean and comfortable Material Body: (Outer side, inner side) 100% polyester (Filling) 100% polyester [with aluminum sheet] Cover: 100% polyester Product size Fully open: 160 x 200cm Sleeping bag: 80 x 200cm Stored: 40 x 40cm Body weight: approx. 1295g We will pack it with cushioning material. We are very sorry, but Due to this being a personally owned item after purchase, Please refrain from purchasing if you are sensitive to such things. Please ask any questions in the comments. Disaster prevention goods Outdoor Type: Envelope type Features: For 3 seasons (spring to autumn)