I purchased one of these last summer and used it heavily for hiking and backpacking. It is super lightweight and even when hiking in the heat didn't feel too warm. Where this baby really shines is at camp! It is great to relax at camp after a day of backpacking and not be pestered by mosquitos. I also have the leggings and a bug repellant buff to make a force field! Sizing is generous. I'm 5'5" and 135lbs, athletic build and small fits loose on me.