Sneakers meet sandals in our most innovative design yet. The UNEEK O3 takes the lightweight two-cord design of our original UNEEK and closes the back with cushioning. Giving you the same free-moving fit with some added heel protection. Made with a durable recycled P.E.T. bungee upper and featuring a quick-dry lining, the UNEEK O3 hybrid sandal sneakers for men are built off KEEN's traditional wider footwear form. KEEN is a values-led, family-owned maker of original hybrid footwear for working and playing outside. Since 2003, KEEN has been consciously creating sandals, boots, shoes, and sneakers on its mission to make the outdoors more accessible for everyone. Every KEEN product is Consciously Created to help leave the planet better than we found it.