This is a very comfortable backpack for women. It has narrower shoulder straps to comfortably fit narrow shoulders. The air vent of the back padding will be great in hot weather. It is breathable and should resist water and dirt well. Slick and low-profile on the back with many adjustments possible without too many hanging straps. I was a bit disappointed to find there is no water bottle sling/pocket outside the bag. The dimensions of the stiff back are quite large and near the dimensions of carry-on luggage for airlines. It's best to not use the roll up top for more space if you are planning to take it on a flight as it would exceed dimensions.