As someone who pumps around 12-14 bags daily (thanks, hyperlactation), I’ve tried EVERY brand. These Mama Bear bags? Game-changers. The plastic is noticeably thicker than others—no flimsy flapping when pouring, and zero leaks after months of use.

The double zipper is genius. My freezer used to look like a Jenga tower with other brands, but these freeze into perfect flat bricks. I can slide 10 bags in smoothly without wrestling my freezer drawer—something I couldn’t do with Up&Up.

Thawing is faster too! The tall, slender design saves freezer space, and the soft material makes pouring milk effortless (though a spout would’ve been nice). At under $0.20 per bag, they’re the most affordable quality option I’ve found—cheaper than Lansinoh but sturdier with easier-to-open seals.

Pro tip: They work great for homemade baby food too! I warm purées in hot water baths with no leaks, though the opening could be wider for spooning in thicker foods. If you’re tired of overpaying for flimsy bags that burst or won’t stack, this 100-count box is your new best friend.