"Great Compression Sack for my Sleeping Bag"
I wanted a waterproof bag for holding my Big Agnes Lost Ranger 2015 sleeping bag and this thing works awesome. It totally compresses down the bag to a nice manageable size. I also love how light weight it is. I was worried about being annoyed having small cords to pull on instead of straps like the Sea to Summit bags, but it hasn't been an issue and works really well. I won't have to worry about having a wet sleeping bag every again.
You won't regret getting this bag. I put my backcountry bed in a 13L and it's great. Small and waterproof, it's cool how you can squeeze the air out when the bag is rolled and sealed. Awesome find, bags offered by companies other than GG don't hold a bag to them. Wish I could put my backpack in it.
This does exactly what it says - compresses and keeps your stuff dry. I use it for my sleeping bag and down vest. It compresses more than the original bag, weighs less, and adds water protection. I haven't tested it in full submersion for an extended period, but it certainly copes with spills and general moisture.