223750DRV__16 Features: Your feet stay dry and warm in wet conditions with fully waterproof GORE-TEX liners that block exterior moisture while allowing sweat to evaporate Protect your feet from the trail with tough nubuck leather uppers while sticky Vibram Evo outsoles provide solid purchase on gravel and dusty ground Support your feet with the durable, full-length nylon shank and the derby style lacing that provides a secure, customized fit Cushion each footfall with the PU Monowrap Frame technology in the midsole which reduces boot weight while retaining lateral stability Your feet can breathe with help from the climate control footbed that is perforated for enhanced ventilation Specifications: