The hardest working river boot available today, the NRS Workboot Wetshoe is used by river professionals, rescue agencies, and Navy SEALs, and is what we rely on to get the job done in the water. Synthetic leather and 5mm neoprene in the upper provide us with unmatched warmth and ankle support while locking down a secure fit, while the 7mm neoprene in the insole absorbs the shock of every step on rocky riverbeds. Plus, we really appreciate the heavy duty, non-marking lug sole that keeps us on our feet on craggy shores and through sketchy hikes.