We have a pair of entry line Ovation's, I think called the Applause line, uke's. They have that round plastic back and are smaller than a tenor uke. They are light weight, fairly small in size, very durable, and sound pretty good. I mean, you really don't want to be hauling some Koa wood beauty with all those corners to dent and ding, so that round "plastic" bottom (you know the ones Ovation is famous for) is very functional for sound and backpackability.