Slipping into the heavenly bliss that is our Angel Fire 25 Sleeping Bag is sort of like jumping into a pool of pillows. When we're stepping along on lengthy backpacking trips, we want to be ensured comfort when it comes time to sleep. That's why we trust its warm and lofty down to heat us up and add some extra fluff on top of our sleeping pads. The secure dual zips ensure no cold seeps through. That is unless we want it to. The zippers slide both ways so we can open it up a little at our feet if we get too toasty.