Flex NRG Snowshoe - Men's by Tubbs Snowshoe Company The patented FLEX Tail technology allows the snowshoe to roll more naturally underfoot from heel strike to toe off. The FLEX Tail absorbs shock from the initial heel strike, reducing the amount of stress on ankles, knees and hips. Tubbs advanced Torsion Deck design adapts to variable snow conditions underfoot. The deck allows torsional articulation throughout the body of the snowshoe, enhancing traction, biomechanics and comfort on uneven terrain. Our most robust 180 Series binding, the gender-specific 180Pro features extended rigid Control Wings, a locking heel strap and a contoured, padded upper for pressure-free comfort and added warmth. The 3D-Curved Traction Rails ensure superior side-hill grip in hard-packed and icy conditions. The curved shape helps prevent fore-aft slippage on steeper terrain by avoiding the saw blade effect.