After buying way too many Ziplocs over the the whole Coronantine period of the last year and and half, it became apparent we use a lot of them! This was an issue - first, that was money tossed out the door for a single-use, and second, it is a single use item that's next stop is in a landfill. So the research started, and to bump up the difficulty, I opted to see if any of these were made in the US of A. And that is how we ended up at Zip Top.These bags are awesome. Durable, dishwasher Safe (ALL THE RACKS!), clean up perfectly (even storing stuff like onions), great leak (no leak issues!), and high-heat tolerant (sous vide compatible). The big downside is the upfront cost of these suckers. With a family that cooks and stores a lot of food, we will probably not see a positive ROI within a year. In our case, that was not a problem but could definitely be a deterrent.Another downside (to the company Zip Top) is the size of the containers. The largest they have is the "Large Dish" at 32 ounces. Here's to hoping they see the demand for larger sizes to use for marinating and bulk storage. Other companies have 64 ounce containers, which also work great (not made in USA), but nobody has made the jump to gallon containers.