User Review: Five Ten Canyoneer
Materials: Neoprene, rubber
Use: Canyoneering, water sports
Break-in Period: Two weeks minimum
Price Paid: $118
First off -- and this has nothing to do with the boot -- make sure when you are ordering yours that you are getting the Canyoneer II and not the Canyoneer. They are the same price, and I understand that the II is a superior product.
That said, I hands down love this boot. It does everything it says it does: it's warm for cold canyon water, it's rugged, it's super-sticky in wet conditions, and it works just fine as an approach boot if you don't want to carry two pair of footwear.
So why shave half a star? It comes down to the feel of my foot in the boot. It fits very well, hence no more than half a star drop. However, you need to consider a good high-wicking sock that's a bit thicker than you normally would wear. People might consider going barefoot in something like this, but I wouldn't recommend going that route.
Definitely use high wick socks -- and as mentioned, try to find a thicker pair. It will add to your comfort and overall experience!
The boot also multitasks well: in addition to being comfortable for the hike in to the canyon, these are great boots for general water wear. Kayakers and canoeists will enjoy the super sticky soles on rocks, as well as the extra protection you get for your ankles -- particularly compared to aqua socks and other similar products.
As to the stickiness, one word of caution: this boot sticks extraordinarily well to rock. Which is to say that if the rock you are standing on is covered in moss, silt or something else, use your usual caution on these hazards as while this boot still sticks better than anything else I know of (besides felt-soled footwear designed for such things), it still will slip.
Bottom line: get yourself a pair -- you'll be very pleased!