These slipcovers are a bargain, however after a few weeks of daily use (now that we're working from home 8-10 hours a day), there are two observations: 
1. The description says fits chairs up to 4" deep, which I can't imagine to be true as our chairs are about 3" and we have to always pull the elastic band back down.
2. There are certain areas in which it appears to be pulling, kind of like velcro on a fabric that velcro shouldn't touch. It's minor, but again only having these for a few weeks, they're definitely not perfect slipcovers.