I’ve tried many types of silicone bags, including Stasher and Luumi, and these are definitely my favorite. Stasher doesn’t seal well and are hard to get clean with all the seams, and my roommates and I found the Luumis too complicated to use regularly. These however are more affordable and work much better than the other brands. The closure is plastic, which I do try to avoid buying, but I think it’s worth it for this product.