Used this weekend on Mtn bike backpacking overnight and performed great. 9 oz packed small and was pillow until it got too cold in down bag and wore rest of night in bag. Not too hot at night and then wore next cold (35F) damp morning all the way till afternoon warmth hit at 50F. Silver color is not great and makes me look like spaceman. Perfect fit for me at M. Compact but room for layering. Went under shell comfortably and over 3 base layers. Nice zipper pockets w larger capacity. Will be standard cool overnight insulation from now on.
This review was written in the old system and had content requirements that are different than reviews written today.