The Cascadia makes good use of a mix of sticky rubber and more aggressive lugs to help you get good grip on everything from slippery mud through to wet rock. The fit works well and the shoe has a stable feel to it as well as having good cushioning.
I've had both Cascadia 2 & 3 and found both brilliant! Comfortable, grippy, just the right support. A really well-designed and built shoe. I highly recommend them and am looking to buy my third pair of Cascadias – not as easy to find as I'd like, though.