Lens Wraps protect, but they also hide.
when you have just one item it is easy to remember what lies behind the blue wrapping. However, when your back is full, labeling or tagging those things is a better idea. If you label by writing on the lens-wrap, you have to keep it separate and sorted. I prefer to have movable labels. This cryptic note lets me know that a Hasselblad A-12 back is loaded with IR(infrared) film and ready to use.
These tags are just “male” velcro so they a tenacious but temporary stickers on the “wrap.” It is easy to move them to another wrap. The hardest part is finding the velcro.