Outdoor Research Micro Night Bivy - 2007 BCS

I bought this bivy for travel in Central America. I slept in it a few times and I stayed mostly dry through a heavy tropical rain during the night and the material breathed fairly well in hot and dry tropical areas. It was an ideal set up considering its light weight and packability. Since there is no pole or internal support, it can be challenging to set it up so that it is not resting on your face.

The bivy was great. The bivy is perfect for what I want it for. It is very light weight. The bug net is great, because at night there are tons of bugs and zipping that up allows me to stay cool without bugs. I would recommend it because of the relatively cheap price. The only bad thing about it that there is a little condensation, which you can expect from almost any bivy.

I have used this in freezing temps, light rain, snow, and even blistering hot weather. This bivy performs in all of it! The condensation stays on the outside of the bag and thanks to the pertex liner it is pretty waterproof and extremely packable and lightweight. I highly suggest this bivy and using the loops to guyout the top to stay out of your face or wear a cap.

i slept 3 times in winter in this bivy and i can say that condensation is INCREDIBLE.The first night i had to get out of it ald sleep over it beacause of the ICE growing on the pertex material.here is some tips to reduce condensation inside:
1:sleep under a tarp; the condensation will be more on the tarp

2:let the zipper open;you should always do it anyway

otherwise in the other 3 seasons, this bivy is the perfect piece of gear.
...and sorry for my bad english, hope you understand

I bought this bivy to protect my down bag in a snow cave. I have not used for that purpose yet but I did throw the bivy with my synthetic back out in the rain for a day to test it out a bit. In an hour of medium rain the top had soaked through and started wetting the bag. There was also a large amount of condensation granted the bivy was full zipped up. I would recommend this for use under a full size tarp to protect your bag from splash and water on the ground but would not trust to stand alone in any kind of storm.

I have tried several other bivys, and had problems with too snug fit, xs condensation, and seam leakage. The OR has worked well on a 5 day ridge running trip in Glacier Nat Park end of September. It improved my sleeping bag warmth by 10-15 degrees F, and kept me dry in a light rain. Plenty of room inside (I'm 6'1", 175 lbs), and the loops on the front are great to keep the netting off my face when suspended from hiking poles or branches. Easy to enter and exit. Folds up small for packing, very light for it's features, very happy with my purchase. Very useful for light, fast, high mountaineering.

It is so light and easy to pack that you forget its there! My first bivy and it has kept me warm and dry so far. There is a little condensation but its a bivy.

This bivy is just too big and heavy to be of any practical use.