Your investment in these wet bags goes a long way. Don't think of it as a nappy bags it is your parenting all purpose bag. Designed for use with cloth nappies but its uses go way beyond that - make up bag, 'no leak' sippy cups etc. Small holds 1-2 nappies and is perfect for storing reusable wipes when out and about.
Wet bags are made from the same material as the outer shell of our nappies. So, just like a nappy, they are designed to keep wetness in, but they won't tolerate being soaked. They are perfect for storing dirty nappies, damp wipes, swim suits in a towel etc - but if you use them for something really wet (like rinsed, unwrung CSP, very wet wipes, or a swim suit that's not been wrung out) then they will wick moisture, just like a nappy.