This is a cheap, pretty light and probably quite waterproof and tough bivvy bag. All bivvy bags pick up some condensation, but in this one there was quite a lot, which meant I didn't really want to use it - even if it doesn't rain, I'm going to get wet! Decathlon is a great brand and I love most of their kit, but I think I'm going to spend a bit more on a more breathable bivvy bag from somewhere else.
Used this for the first time last month and I'm very happy with it. Good construction and I didn't get too sweaty through the night so it obviously works. A great piece of kit and as I always use a down sleeping bag I won't camp anywhere without it.
Very light and came in its own stuff sack.
Nothing. All good.
Used this for the first time the other night. Worked well. Kept me very warm and was not damp on the inside by morning (from condensation). As yet untested in the rain! Used alongside Decathlon's similarly priced hammock.
i am homeless and one time i was using this product and i got caught in an 8 hour torrential downpour and i was still dry.