Keen Women's Clearwater CNX Sandals (7, black) - The Keen Women's Clearwater CNX is an extremely lightweight shoe that allow for a natural gait.The CNX technology incorporates three features: It allows for a minimal heel-to-toe drop, provides optimal support with metatarsal ridges for underfoot support and contoured arches for midfoot support. Plus, the sandals have less upper material to save weight and provide maximal comfort. This technology promotes a healthy gait that will almost feel like your going barefoot! But wait, there's more! The sandals are equipped with a non-marking outsole with multidirectional grooves that lend flexibility and traction. For increased traction, there is razor siping (small slits) in the outsoles. For the perfect fit, the sandals are equipped with the Fit Lace lacing system, which is very easy to use! The Keen Women's Clearwater CNX is a pair of really stylish sandals that not only promote a healthy gait but are also tough enough for outdoor use.