My dabrim arrived last night just in time for a week of predicted rain.

Fits my helmet rather poorly, given mine has this kind of pointless elongation at the back. May try to add an alternate loop for the cinch strap to go below that and better capture it. Or may eventually end up with a different helmet.

Bigger annoyance is that it won't work with my helmet cover I was using to avoid sunburn through the vents. Guess I'm going to put some velcro or sew-on snaps or something around its band so that I can make a cover that attaches to those. Would almost just make the cover a part of it, maybe baste it on by hand, since I can't see using the brim without also wanting a cover, but it may make installation harder.

My tentative plan is to to take it off and attach it to my pack for after sunset (and next time out, pre-dawn) riding, and having the center hollow related to how I was planning to attach it (don't really want to fold it to stuff in the pack routinely, though it did ship folded).

I guess Is should also test headlamp compatibility with keeping it on first. It's going to make walking around with a helmet clipped to pack strap or handlebar more awkward though.

Will need to improvise a front stabilizer since my supplier didn't seem to carry that, but should be simple.