Best Quart-Sized Bags

A good bag for your snacks will be less likely to suffer from the point of a pen or teeth keys, thus better protecting your snack, your tote, and your blood sugar. 

We tested seven plastic bags—both slider and press-to-seal styles—in the TSA-friendly quart size, which will fit either snacks, sandwiches, or toiletries, to find which you can trust to throw in a purse, backpack, or pocket without worry. We did a lot more than throw them into bags, though; CR lab tester José Amézquita put them through puncture, leak, and stretch tests to figure out which products are the most secure. Plus, we let a 6-year-old open and close them to see which are easiest for school lunches, and more. Check out the full methodology at the end of this article.