Description from the seller: 

Our first Eco-friendly Ankle Deck Boot builds on our heritage and what we do best with the addition of Yulex, the World's first plant-based replacement for our standard neoprene. This lightweight silhouette features our signature non-marking, slip resistant Chevron outsole. The ECO is 100% waterproof built with Yulex, a natural rubber derived from the sap of the Hevea Tree. This boot is equally as durable, flexible, and comfortable as the original Ankle Deck Boot.

• Recommend half sizes order up
• 100% Waterproof
• Slip-Resistant Chevron Outsole
• XPRESSCOOL® anti-microbial evaporative cooling liner that helps regulate foot temperature to keep you comfortable in cool and warm environments
Front and Rear Pull-On Tabs