Here are answers to a couple questions that have come in through the AMK website over the past week.

Q: I do SAR and have to carry for myself and a subject.  Your 2.0 Bivvy sac is small and light, but for another $25 to $50 and maybe 16 oz more I could get a 40 degree “rated” bag.   I would always carry at least your 2.0 Bivvy but am considering a lightweight down bag for those cold nights.   If your Bivvy was “rated” at 40 – 45 degrees, it would be a no brainier to always carry two of your bags.  Have you done any testing to get a temperature rating on your 2.0 Bivvy?