Okay, I finally got around to trying this thing, awesome. I like the hole design over the Aerostich version, it is less likely to fall off the nozzle. Held the vapor thing back perfectly. Heavy construction yet lightweight. At this time I can't think of any needed improvements. You should mass produce these babies with ads for cycle shops,mags, etc. Much better than keyrings. Let me know if you want someone walk these around the SF bay area.