This Bivy is fine if you don't want to use it on day-to-day basis. The hood is kind of narrow to get in (guess it is really waterproof for that). It is difficult to enter with a bulky sleeping bag and once inside you don't have a lot of space to close the sleeping bag and adjust the cords. It might be alright during the summer with a smaller sleeping bag - I haven't tested that yet. How ever I am not impressed with it during winter trips.

This bivy sack is great. I just got it in the mail and looks sweet. It was raining today, so I got to try it out. Totally waterproof. I have never bought a bivy sack, but htis one seems awesome. It doesn't have a zipper, which I didn't know. It has a hood with drawstrings. I will try it while camping, but I expect it will work out great. It also is lightweight and small sized. Buy it.

It's too small. I'm too big. Fresh air is about 18 inches away from your mouth. The only gear purchase I regret. I went with DIY replacement and am now much happier as I sleep in bivvy sack in a snow trench beneath a pyramid tarp in winter and feel bombprooof.

I have used this bag cover several times, including once in a real downpour, where it kept me dry as a bone. It is a bit narrow, but that, I guess, is the price to pay for a light-weight bivy sack. I usually use this thing with a light-weight sleeping bag, and put on all my warm clothes before getting into it--no point carrying insulation for the day and insulation for night. I haven't frozen to death yet!