Glad I bought this . Light and compresses well . One wouldn't think this garment could pack the warmth that it does . Wore it today for the first time , ice climbing . Had on a mid wt layer , 100 wt fleece with a soft shell . As pretty chilly . Threw the patty on and I was toast . Temps were low teens with a good stiff wind . Easy in the single digets 0 with the wind chill . Fit is good for layering under or over a shell .I'm 5'10" 190# with a square build and the large fit perfect . Not to baggy as a under layer , and works well as a over layer with no restrictive movements .