These pouches are NOT leak-proof, so be careful what you pack in them. Small leaks of viscous materials will not cause problems (toothpaste, foot cream). The problem is liquids that leak out of the container in which they have been stored, which will then leak right out of these pouches and all over the contents of your luggage. And the black pouches bleed when the mesh-like outer covering gets wet. My recommendation is to place liquids in high-quality, leak-proof containers (test first, though, do not take the manufacturer's word for it) and then place the containers in the pouch. On the plus side, the pouches do clean up easily when contents spill.
11-19 Annual Trips
Bottom Line No, I would not recommend this to a friend