Climashield APEX - 3.6 oz/sq yd
I am very happy with this insulation. Was a bit surprised to find that there were some inconsistency in the thickness but that doesn’t seem to have had any effect on performance. I am including a link to my DIY video on YT.
Not much to say. Stuff is fantastic, service was good. Got folded over after being vacuum sealed and had to iron is the only negative and I mean come on.
I'm happy with this product. I sleep usually 20 degrees colder than products are rated though my sleeping bags are getting old. I tested it in a RV trailer during the first snow with the windows open. Using it as a top quilt by sandwiching it between 1 oz hyper d, and doubling the insulation up to get 6.6oz total and with basically perfect insulation underneath it, I was comfortable at 27 degrees Fahrenheit with just a hat and underwear on. The way it's made I think it would be lighter for the warmth if you did not double layers as it's denser on the outer edges, but I needed to double to get the weights I wanted.
I was not happy with the packaging. It arrived vacuum sealed in a tiny box for it's size and some of the insulation was caught in the vacuum packaging so that I had to cut the insulation to get it out. I have read that you permanently loose loft by smashing insulation even the first time and I was planning to store it rolled in a large stuff sack never smashed. I would have paid more to have it shipped in a larger box less smashed.
Great down alternative for a lightweight quilt/bag! Seems warm and packs down small.