The angled topline offers a more comfortable fit around the calf while the extended rubber upper offers additional protection. This boot will be a classic for years to come. • 5mm CR Flex-Foam • Breathable Airmesh Lining • Extended Rubber Coverage • Angled Topline • Achilles Reinforcement • Aggressive Waffle High Traction Outsole • CR Flex-Foam adjusts to the unique contours of your foot to create a comfortable and stable foundation while resisting blisters and chafing • Upper: Rubber/Neoprene; Lining: Breathable Airmesh; Sole: Rubber • Care Instructions: Clean with cold water,and use rubber boot care • Heel Height: 2.0 cm