Used for one night of mountain climbing. I hardly noticed any dirt or stains. This is a sleeping bag that uses NANGA's waterproof and breathable material for the outer fabric, making it resistant to condensation inside the tent. Here are the specifications: [Color] Red [Material] Outer fabric: 15dn Auroratex / Inner fabric: 15dn ripstop nylon / Insulation: Spanish duck down 90-10% (760FP) [Size] R (Maximum length 210cm x Maximum shoulder width 80cm) [Suitable height] Up to 178cm [Storage size] φ13 x 25cm [Total weight] Approximately 750g [Down fill] 350g [Country of origin] Made in Japan [Internal structure] Single quilt construction [Comfort temperature] 5°C / [Lower limit temperature] 0°C