The sleeping bag has evolved to the next level. EPS (Expander Panel System) bags give versatility to tackle any adventure. The key is its ability to control temperature and comfort by being able to transform from a warm and comfortable sleeping bag, to a cool and spacious one. The bag has all the features of traditional sleeping bags but the jumbo zipper baffle can be opened to give much more room when needed. The extra space inside the bag allows more air to move keeping the bag cooler. This temperature management gives your bag much more flexibility allowing you to confidently select a product that can perform in a range of different conditions, so when the temperature drops you can compress the sleeping bag tighter and instantly increase its performance. Color: Black Length: 86 in Chest: 50 in EPS Pack Size: 7.0 x 7.0 in (compressed) Comfort Temp: 45 F Low Temp: 36 F