This is my version of a summer sock. It is made from ARGON 90 and Nanoseeum so it is breathable but has a quality DWR for quilt protection. I have 11 foot and 10 foot versions. It is designed to work with a hammock with a ridgeline. Tapered on one end and drawstring on the other. The Summer sock has a panel nanoseeum the full length of the sock and can be turned to vary the amount of venting. This does not come with a stuff sack. Comes in black and of course it is made in the USA.