This is always my 2nd layer when kayaking during the summer and fall. Once the sun sets or there's a breeze and a tshirt isn't enough, this shirt is what I reach for. It's lightweight, breathable, and remarkably warm. Even if I drop it in water, it dries fast enough to make me look civilized at a lunch stop. The front bottom hem is straight but the back is curved down enough to cover to the waistband of pants when sitting. Good for exercising outside or on the river.