Several years ago we had a speaker from Canada that was promoting the corrugated plastic winter wraps. The Ontario Beekeepers Assoc. has just posted on their web site the 2023 sizes and prices. For example a deep wrap, covering two deep boxes, sells for $13.00 Canadian, which is under $10.00 US. Unfortunately they can only be picked up, not shipped. I went with another beekeeper to Cornwall Ontario a while back and picked up some. Wish I had gotten more. Anyway, if anyone is taking a trip and would accept additional orders I would participate.. Check out the site...Peter