The Pitchpine UL 45 is Discontinued as of February, 2017The Big Agnes Pitchpine UL 45 is our Top Pick for Summer Use backpacking when nighttime temperatures do not fall below 40°F. It is not as warm or light as our other award winners, but the generous fixed girth is comfortable and provides plenty of room for side sleepers or active sleepers who toss and turn. Rather than straps, this closed footbox quilt uses a sleeve of light shell fabric to attach to any 20" wide sleeping pad. Unlike the other two models we call "closed footbox quilts," this "system bag" is completely enclosed, and there's a built-in pillow pocket!
While adding a liner (Big Agnes makes a nice one that attaches inside the bag) can make this a true three-season bag, the Katabatic Gear Palisade 30 is the best and warmest ultralight model we tested for thru-hiking and three-season backpacking. Its warmth-to-weight ratio in exceptional, and it adjusts well to both cold and warm nights. If you're on a tight budget, no model we tested delivers more warmth and versatility for the price than the Enlightened Equipment Revelation 20.