FEATURES 1. robust, yet lightweight 2. 100% waterproof 3. flexible material for easy walking 4. cold insulation down to -40°C/-40°F for extra warm feet 5. metal-free toe cap and midsole (S5): corrosion free 6. excellent grip, increased slip resistance SRC 7. shock absorbing heel to soften the impact from walking on hard surfaces 8. resistant to oils, fats and chemical products