I have a few down jackets and I decided to use the Microlight for our most recent backpacking trip on the Salkantay Trail in Peru, due to it being so versatile. For the record I have used and owned this jacket since 2012. Our first night we camped at 12500ft of elevation and woke up to ice on our tent and poles. I used this with a wool layer underneath and rain jacket over and handled the temps before sleeping great. While moving on trail, I used this as a stand alone piece when the wind kicked up or I started to chill down. June In Cusco, Peru the temp drops to around 30*F at night and wore this as a stand along piece as walked around downtown being tourist. The temp was approximately somewhere in the 40's.
It has the right cut to have a layer underneath if needed and happy with the fill weight and power to keep me warm in multiple environments. I continue to be happy with the Microlight and Rab products.
(I almost wish I bought the hooded version, but still happy with the jacket)
photo is at 15200ft of elevation, Salkantay Pass, Peru