Im not 100% why other than I thought it would be a nice project to keep extending my sewing knowledge or ability and who knows I may even use it one day
Actually at 149 grams I will do away with the emergency blanket in my first aid kit and keep this instead. (thanks to the bush walk.com member for the suggestion).
Im not certain of the nylon ratings but the base uses a waterproof silnylon approx 1.3oz which is quite thin but I drenched a towel and knelt on it on the bathroom floor using the silnylon as a barrier and no moisture came through so Im confident it will do the job for what ill ever use it for.
The top is made from a water resistant breathable nylon and I used quite a bit of mesh over my head. The whole thing is zipped right around the top and a third down both sides, so access is easy. Although zipping it up once in it isn't as easy as Id like but it is a bivy, so its quite a confined space.
I think if I was to use it as a part of a sleeping system on a hike it would be under my tarptent or under a tarp of some sort and Id most likely still use some sort of ground cover. I will probably give this one to my son or wife to use and make another one that is slightly longer and larger as I feel a little cramped in it. I made it to suit my mat so it definitely keeps me on the mat but in hindsight I could have made it larger. I might sew some more tabs into it so I can tie it up in the tent and keep it off me a little, that may help with the cramped feeling.
As usual, sorry about the poor quality phone pic.
