I used to carry all of my lenses in slip-on tube cases made of cutting off the tops of my old (well-washed and lint-free) socks and stitching the cut end closed on a sewing machine (with the sock inside out, so the raw edge goes inside). It made nice protective cases that were soft, breathable, quick, fit any lens, and could regularly be run through the laundry. They stretched to hold any lens securely. That worked for my RF lenses, which were all distinctly different to touch. It was a great system, and I'm surprised no one else seems to have done it.
Now I use small baggies for most of them, since all Nikon system MF lenses look almost the same, I can't identify them by touch anymore, and the rabbit-ears get hung up on sock tops (though I've removed most of the bunny-tops). When the bag gets grungy, toss it. This system works surprisingly well, too. Heavy-gauge freezer bags do a good job of keeping things from banging together in a scratchy way. I don't zip the bag, but sort of roll the top around the lens.
Everything gets taken out and moved around every day or two, so the long term effects of being sealed don't matter. When it rains, I don't worry at all, knowing that all my lenses (bodies, too, in bigger baggies) will be dry, even if my bag gets soaked. Lenses that I don't use often sit on a shelf in my vault, naked, getting lots of air.
The other thing I did for my Leica lenses was put a strip of velcro on top of every finder, and a mating strip on the bottom of all the lens back caps I had. That way I could take off the lens, put on a cap on it, stick the finder to its own lens, and slide the pair in a sock, together.
I recommend the sock top idea; I really do. It served me well for several decades.
