Designed for those who feel that less really is more. Everything the Spitfire™ has, in just a little smaller, teardrop shaped package. This pack is being built to meet NFPA 1977 specifications. We're in the process of getting it independently tested by Underwriter's Laboratories to certify compliance. We expect final certification in early 2011. For further information, please contact customer service at 800.873.5725 Option 1