Men's Black Commando Chelsea Boot - 11 / Black Men's Black Commando Chelsea Boots Size/Fit Summary: Snug fit. If you are in-between sizes, have a wider calf or want to wear a thick sock, it is recommended to size up. Note: The elastic gusset is not fully waterproof. These 100% waterproof boots are handcrafted to strict standards to protect forests, as well as the animals and communities that depend on them. Vegan rubber, the 100% waterproof lower Commando Chelsea Boot is an icon within our Original collection. Retaining all the beloved features of the Original black Chelsea Boot, like the flexible gusset and Hunter grip, this new silhouette has a higher profile, reaching 15mm further up the leg. This style also features an updated recycled polyester lining and insole.