The Meindl Burma Pro MFS GTX Men's Boots are made with oiled Nubuck leather uppers with Memory foam fit in heel area for added comfort. The lowest hooks lock the laces for differential tensioning, and the next set up spring from deep tabs to pull your foot firmly into the boot's heel. A central hook stabilises the tongue, and a flex notch allows you to maintain a natural ankle movement, while the heel is reinforced for a sure fit. Burma Pro MFS boot MFS ( Memory Foam System) and inner lining which , when warmed by your body temperature, softens and adjusts to the shape of your foot. The waterproof Gore-Tex will keep your feet warm and dry on a wet rainy day.