Labeling roll top dry bags?

[Mfloski]

I have several kuiu and kifaru dry bags and want to label them nicely. Permament marker doesn’t work, any suggestions?

 

[Davyalabama]

Two thoughts: 1) Rub-A-Dub pen 2) spice label and chalk pen marker for them like women use for the plastic bins in the pantry. (I can attest these hold up well to washing in a dishwasher.