I took some measurements today.
The Revo 13 bow storage area from the top tip of the bow to the back of the front hatch is around 43 inches roughly. However, because of the taper of the bow, the lower part of the bow to the back of the front hatch is more like 39 inches (or 1 meter for you international readers). The height inside the front of the bow is just about 11 inches, and the height from the bottom of the hull to the opening of the hatch is 13 inches. Incidentally, the width of the kayak at the back of the front hatch is approximately 23 inches (but the hatch is only 12 inches wide).
So there are two options for fish bags if you want to get the most of that in-hull area:
(1) Use those measurements to either find or make a triangular fish bag
OR
(2) find a rectangular bag that will fit the length of this in-hull area.
I haven't found the best triangular bag on the market for these measurements yet, and I am too cheap to get one custom made. So I'm probably going to go with the rectangular shaped bag. Here are the best I have found so far:
- Katch Kooler II by Silver Horde
http://www.cabelas.com/product/SILVER-HORDE-KATCHKOOLER-II/1837279.uts?productVariantId=2987619&WT.tsrc=PPC&WT.mc_id=GoogleProductAds&WT.z_mc_id1=03258627&rid=20&gclid=Cj0KEQjwyN7JBRCZn7LKgb3ki8kBEiQAaLEsqjLpT5f8nXptqF4rSZ5PGeQBICMBxQQC5-lIpgd6tFYaArzd8P8HAQ&gclsrc=aw.dsIts 16" tall and 40" long, and at $40 won't break the bank. I do like that the zipper is only on top so the sides won't leak fishy water. I don't like the narrow design though, so it might flop to one side or the other unless you have some ice or fish in there.
- Chiller Fish Bags
https://www.bluebottlefishing.com/products/the-mini-chiller-fish-bag.htmlOK, I'm liking this one (even though I'd have to pay to get it over from Australia) and its $120USD + shipping. 39 inches long, 15 inches tall, and 7 inches wide at the base. It might be a bit tricky to fit it into the very tip of the bow, but the wider base makes this fish bag more stable than the previous one. I think the drain bung at the bottom will help cleanup as well.
Thought I would share my findings, and I'll update as I find more.