Both of these items are technically used but very rarely used. I used the stuff sack a few times before I ended up with a different bag I liked better. It's good for things that hold a lot of air. I used it for any down items as they can get pretty small and the straps help to cinch it tight and small. The bag is waterproof and made of 70 D taffeta nylon, PU coated, fully seam taped, OEKO-TEX® 100 certified, DWR C6. I never had any issues with it but also never submerged it.
The blanket came from an outdoor event and I won it. I've only used it a few times. One side has the gore-tex fabric and the other is fleece like. It is not full throw size but should be good enough for a single person to use while hanging out at camp. I would use it in my camp chair to cover myself or my legs. Especially if it was windy.