LaCrosse Men&rsquo;s Grange 18&rdquo; Hunting Boot 100% Rubber Rubber sole Hand-laid premium ZXT Rubber for durable, waterproof, scent-free protection ZXT Rubber is ozone, abrasion and tear resistant with added tensile strength Multilayer rubber on the toe and heel plus a double-layer, ribbed vamp for added durability Ankle Fit locks the heel in place and top strap is adjustable for a comfortable, secure fit