The bivvy comes in a bag made of the same material as the fly so i sealed the seam with tent sealer to use it as a water bottle while camping and it worked fine but i tested it today for about 12 hour only will come with update

Resting on your back with your hands under the head with elbows spread on sides one gets the impression of being in the real tent

All my gear fits in climit sleeping pad cycling bags and panniers travel clothing food ample space left all around

Very spacious inside in emergency even 2 persons might fit in of course average size people