The Ben collection offers excellent comfort and durability. The Tyrell is a desert boot. The 'Icecap' is a soft semi nubuck. The Ben sole; heavily cleated airwair sole. These boots are heat-sealed and welt stitched. The original Dr. Martens air-cushioned sole, providing underfoot comfort and durability since 1960. It is oil- and fat-resistant, tough and offers good abrasion and slip resistance.