Condoms may be tiny, but I bet you could squeeze a few Gerber baby bottle liners into that Pelican case. I bought some for my kit a while back and loved them. Mine held almost exactly 16oz, which is perfect for the water purification tablets i carry. I did a test run with one on a day hike and it did pretty well. I filled the bag at home, tossed it into my cargo pocket, and carried it around like that for a day. It held up very well, and there were no leaks at all from the ziplock seal.