I no longer have zip lock bags in my apartment because I hate using single-use plastic and there are so many better alternatives. I have tried both the Stasher silicone bags and these bags with the sliders, and the slider ones have proven to be significantly better. They are dishwasher safe, easy to use, and unlike stasher, they are still closeable after a few months. The problem I have found with stasher bags is that after a while the seal wont actually seal anymore. These bags take a few tries to get use to - but worth the switch for sure!