This is the NANGA SF800 sleeping bag. This is a synthetic fiber sleeping bag, which is rare for NANGA. I've used it a few times, but I think it's in good condition. ■Brand Name: NANGA × SUNDAY MOUNTAIN ■Product Name: Limited Sleeping Bag SF800 ■Color: Coyote ■Size: Regular (Suitable height: up to 180cm) ■Storage Size: Approximately φ20 x 42cm ■Material: Outer fabric / 20dn nylon ripstop, silicone water repellent finish Insulation / dacronNATURAL+ soft-as-cloud Fiberfill (Insulation amount: 800g) ■Internal structure: Single quilt ■Total weight: (approx.) 1361g ■Comfort temperature: 0℃ ■Lower limit temperature: -6℃ (※This is a reference value) ■Features: Down bag type