Can I write on my harness or lanyard?
Permanent markers (Sharpie® brand or equivalent) use solvents that allow the ink to dry very quickly. Once exposed to the air, the solvents in the permanent markers evaporate almost immediately leaving just the ink. Neither the solvents nor the ink in permanent markers will cause any harm to either polyester or nylon web. Werner recommends marking on the product label provided the markings on the label are still legible. A fabric marker rated for use on launderable items is recommended if the equipment must be marked on the web.
You can use permanent markers (like Sharpie®) on polyester or nylon webbing—solvents evaporate quickly and do not weaken the material.
Some ink discoloration or bleeding may occur, but it won’t affect the breaking strength.
Mark on the product label (without covering existing info) or use a fabric marker rated for launderable items if marking the web is necessary.
Do not use paint or paint pens, and avoid attaching labels, rings, or foreign materials to D-rings or snap hooks.
No additional grommets, rivets, or holes should be added to attach private labels.