As the name "AT" in "HYDRO MOC AT" stands for "All Terrain," this latest model is an evolution of the brand's iconic amphibious shoe, "HYDRO MOC," now equipped with a rugged rubber outsole to conquer any field. A masterpiece of 1TRL, it achieves a balance of striking design and top-level functionality and comfort expected of an outdoor brand. Featuring a ripstop liner insert designed with 80% recycled nylon, it gently envelops the foot for a comfortable fit. I'm selling these as I've only worn them a few times since purchasing them. They will be shipped in the original box.