The Fission has been discontinued. If you're looking for something new, check out the best 3-season synthetic sleeping bags for 2020.
Historic Range: $119.98-$259.00
I have last year's model. For a 20 degree bag it sure keeps me warm on below 20 degree nights mostly due to reduced size. Drawback: zipper is quite "sticky tricky". Recommend for any lightweight hikers in damp climates.
Fill: Polarguard Delta
Temperature Rating: 20 Degrees Farenheight