Review (5/5): Best I've found so far!
Best hair elastics EVER, in my opinion! They do slacken after only a few uses but I still get them wrapped around just fine. I have fine hair. I imagine somebody with thicker hair might have a tougher time when they lose the stretchiness.
My favorite part about these is there are NO seams so they are very hair-friendly. I have to pull my hair back in the same spot everyday for work, which causes a lot of breakage in that area, so I was looking for an elastic that will cause as little damage as possible. So far these are the best I've found!