Jabbadashery is still open (or were a few weeks ago), but they do not have a run going on the fabric. Sirene's link in one of my above comments works to get to their website. I have bought a scuba knit neoprene in white, and dyeing it myself. It's the best option available now. She added me to a "wait" list, but did not sound optimistic that there would be a run done at anytime in the near future. Just not enough demand for the fabric. So, for now, I'm doing my own. What the future holds, who knows. I'm hoping mine turns out amazing and I don't need to hunt any further. Pieces are cut out and awaiting my dyeing session, which I'm opening to do this Sunday.
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I'm still working on the helmet. When I've secured something, I will be sure and let you know!