it's fully waterproof

or working with custom inks

As usual they focused on everything fitting the category "rolling steel" and has specials with Deor

Skyr and Trash

fast-drying ink and trace lines that are 1 mm in width

sakura my name permanent marker fine Goog it's fully waterproofThe Sakura My Name marker is a permanent fabric marker built to write directly on textiles, leather, and hard plastic tags without the ink bleeding along the weave the way a standard office marker does. The oil based black ink dries almost instantly and bonds to the material on contact, so there's no need to iron or heat set it afterward to make it wash resistant it's ready to go straight through the laundry once it's dry. The fine nylon bullet tip