Hm, they say too good to be true right? A down "quilt" in essence for $150? http://www.prolitegear.com/site/rab-module-sleeping-bag.html
Only 100 grams of insulation, but with clothes on, a silk liner, and a bivy, how bad could it be for summer use? A beefier version with 200g of insulation is also on sale and only $10 more I think http://www.moontrail.com/rab-neutrino-200-sl.php

