The Kathleena boot, based on an engineer boot, is a biker-inspired calf-height boot with straps. It can be left calf-height or folded over to reveal the lining and give it a shorter style option. Strap Calf Boot. Mirage Leather. Monochrome camouflage printed lining. Two buckle straps. D-ring used to attach the folded down upper to the rear of the ankle. Comfort last specifically designed to fit a female foot. Goodyear-Welted product, the upper and sole are heat-sealed and sewn together. Dr. Martens air-cushion sole, oil and fat-resistant, offers good abrasion and slip resistance.