100% waterproof construction repels all moisture to keep feet dry · 5mm Neo-Tech upper provides mediumweight and waterproof comfort · Nylon jersey lining with Max Wick coating provides all-day comfort· Internal steel shank for maximum support and stability · BOGS Grip outsoles feature tried-and-true rubber for excellent all-purpose traction· Comfort range from 5°F to 85°F (-15°C to 29°C) for four-season wearability · · EH-rated for for electrical hazard safety