Bests & Worsts Reviews from Amazon

I was really excited to use these bands, and the first few times I used them, they were great. However, after less than 2 weeks of using them a few days a week for about 40 minutes at a time, the Light and Medium bands have stretched out so if I'm standing at all, they fall right off. This is super frustrating because I specifically looked for bands that were all the same length with different resistance since I have a small frame. I'm 5' and about 111 lbs. I bought a different brand for my husband & his have not stretched out at all. Disappointed :( Also, the drawstring to the bag doesn't have any kind of closure to keep it from opening.