Norvan Ld 4 Black/Black ShoesDescription The four season, waterproof shoe designed to adapt to your long training and adventure runs over mud, roots, and rocks no matter the forecast. The spacious forefoot and secure midfoot hold deliver comfort and stability, the mud releasing lug pattern gives you the control to rip and grip across any terrain, and the durable upper and Vibram Megagrip outsole stand up to unforgiving rock and soggy trails.