I use an under-desk elliptical machine, and to get accurate workout data I move my watch to my ankle. Switching my watch band every day from a buckled band to an elastic that stretches over my foot is annoying. The Loop band is stretchy enough to get over my foot, and it's not too tight on my ankle. It has not, so far stretched out at all from these daily stretches. It fits nicely on my wrist.
Further, it's attractive and I like the no-buckle look. I wear my watch on the inside of my wrist, so ...