Lightweight and with the velcro straps behind the heel, over the bend of the foot and over the toes, you can adjust snugness or looseness perfectly and easily.  The arch is a good rise, but the heel falls down lower than the arch, which was something to get used to for me.  I bought these as a hassle-free water shoe I will need at Busch Gardens this summer and I think it will serve well, however the rubber soles might not have enough grip for slippery, wet surfaces.  I slipped a couple of times while hiking across some wet lava cliffs in Hawaii.