Taking a minimalist route, these shoes are extremely light and quite agile. A single Men's size 9 shoe only weighs 280g. There is a contoured arch for midsole support, along with a metatarsal ridge for underfoot support. Since there isn't a lot of ankle support, I would stick to flatter day-use trails with these shoes.
They breath well and thanks to the wicking lining, my feet didn't get sweaty on the hottest days. The shoe flexes nicely and broke in quickly to provide a comfortable fit. The Tunari CNX became my go-to shoes for road trips and local trail exploration. Watching the 'hemispheres' of the shoe flex with each step was interesting to watch as they were constructed with flexibility in mind.
Picture the Tunari CNX as lightly armoured footwear that have advantages over the tried and true sandals. Since they don't have large openings, they provide protection from mosquitos, blackflies and other critters. You also won't have fallen branches poking you when walking through un-maintained trails.