Size Weight Capacity: 21-inch snowshoes optimized weight range is 80-150lbs 27 inches snow shoes optimized weight range is 160-220lbs (Note: the load that including anything user?s carrying and snowshoeing equipment) Design Easy To Put Snowshoes: the snowshoes feature an ergonomic design that ensure comfortable, smooth and flexible walking on the snow. fully adjustable ratchet binding with fast lock loosen system and heal strap with an auto-locking system, it?s easy to put on and take off your footwear. Tempered steel toe crampons and heavy saw tooth provide great traction and grips on ice. Slightly upturned shape at the tail offers you maximum flotation and fast movement in deep snow condition. Heel Lift Riser: The unique system makes a dramatic difference when snowshoeing up hills or steeper terrain. They do this by changing the angle of your foot in relation to the snowshoes which makes going up hill feel more like natural stride they reduce cavity and increase traction by keeping your weight more evenly distributed. Light Weight Material: snow shoes made of durable lightweight 6000 series aircraft aluminum frame, High-density polyethylene decking, DuPont pivot and DuPont pivot and heavy duty steel crampons. Packing: one pair snowshoe + one carrying tote bag