@cohenb Thanks for the great conversation!
In the category of folding kayaks you are considering your only option would be a 'sit in' style. If you were interested in a 'sit on top that' kayak that is highly portable you would need to look at a kayak like the STAR Raven I Inflatable Kayak or the Aquaglide Deschutes 130 Inflatable Kayak.
The foldable kayaks you are looking at are a cool concept and both have large cockpits which make paddling fun and the kayak easy to get in and out of. I have paddled both 10' kayaks and 12' kayaks and, in my experience, the 12' kayak is much more fun to paddle. It's ability to track (remain in a straight line when paddling) makes for more efficient and enjoyable paddling, and, at 12', it is still maneuverable enough for paddling into tight spaces.
Hopefully this helps, don't hesitate to reach out with any other questions you may have!
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