These are fabulous to to make premade smoothie mix for my boys. Holds up well in the freezer and no frozen aftertaste with your usual freezer bags. These are a game changer!Good quality, looks like they will last for quite a while.They do exactly what they say. I've refrained from microwaving them or cleaning in the dish washer so they're still going strong after several months of use. I'll call that a win! I marinated some meat in one of these before and then put a sandwhich in the next time around. The sandwich tasted like marinade, lol. All good, though. I've made sure to clean them thoroughly after using for marinade and it hasn't been an issue since.Work so much better than store bought freezer bagsWorks good but hard to clean.Cuts down on my plastic usage. If you get them too hot, they will warp.Sturdy and does not leak. Great for smoothie packs in freezer. Don’t put in dishwasher; it will warp the zipper.These bags would have been great if they were easier to open. There is room for improvement on the design. Perhaps making the pull tabs taller with more room to grip would fix the issue. I had to return them.Haven't tried liquid yet, but fits my needs, to freeze left overs or store in fridge. Easy to wash.Product is great. Will surely buy again. Perfect for single person to freeze a meal.Ne se ferme pas bien donc les sacs ne sont pas étanches. Très déçue du produit. Je vous le déconseille fortement.