Temperature Rating: This bag withstands temps to 22°, and most people claim it lives up to its reputation. It also has a special insulation that works for all seasons.
Price: You'd expect a much higher price for this quality, but it rings up at under $100. Great bang for your buck!
Comfort: The thermapro insulation is also fairly lofty. People also love the foot vent that allows you to cool off in warmer seasons.