I have a baby, 4 yo and 8 yo and I work in healthcare, also a runner, so my jewelry gets tested for durability and comfort. The small JUC is very comfortable, no issues with durability. The only time I have a problem is if I sleep with it, I think I am an active sleeper, so I will wake up with it fastened through my blanket. However, if I wear a bracelet on both sides of it, this does not happen (or if I take it off before bed). No issues with bending out of shape; sometimes the sides will flip over each other, but then you just flip them back into place. I have the regular JUC also, and while I love the look, it is heavier and will press into my arm painfully when I am carrying the baby on that arm, so I have not been wearing it this year.