This is helium balloon light - hence the name. It weights exactly 520 grams (1 lb 2 3/8 oz) with the stuff sack and pole. Fits my 6'3 height. I have not tested this outdoors yet - just in my office seeing if it would fit and testing the pole out. The lightweight fabric on this model is probably not suited to constant use, but I'm not sure. I used a gore-tex bivy in the past that didn't have a pole. Bivy sacks in general are not great for the rain due to sweat and breath moisture not being able to escape fast enough when the outside of the bivy is wet (similar to a light weight rain jacket). I've mainly used a bivy sack as a "just in case" and to add about 10 degrees of warmth to my sleeping bag. This is good for minimalist backpacking. I'll probably include it in my Search and Rescue pack.