This is a Nanga mini sleeping bag phone case. It's useful not only for storing small items, but also as a cold weather measure for smartphones, such as preventing battery drain in the snowy mountains. Color: Black This is a new, unused item. The following is quoted from the web page: ■ You can store mobile phones, sunglasses, accessories, etc. It comes with a carabiner, so you can attach it to a bag or daisy chain. Fabric: 20dn RIPSTOP NYLON Insulation: Duck down 90-10% Size: W8.5cm x H17cm Colors: MUSTARD, BLK (Black), COYOTE, GLD (Gold) Features: Carabiner, adjuster Country of origin: China