These pouches are really great. I like several things about them: they are not rigid, so they conform when you pack them. The zipper- so many pouches have slides and they just don’t hold up, but this does and it is water tight. And the yellow is attractive and easy to spot in the luggage. I use them for those suspect bottles that always seem to leak in the compression of packing or the high altitude of flying, and I use them for my protein powder bags, and for meds- since they are clear I know immediately what I’ve packed. I like them so much I’ve given them as gifts to my other frequent flyer friends!