The North Star 2.5 CoreTech Sleep Bag - Blue/Silver, is a 25 degree F bag that is build to last a lifetime. Synthetic holofiber fill is ultra compactable with extreme loft. CoreTech design puts a double layer of fill around the core, where your body needs it most. Shipping Length: 19.0 inch X Shipping Length: 14.0 inch X Shipping Length: 6.0 inch X