The shoe frames are made of lightweight 6000 series Easton aluminumtubing and the decks are made of durable, lightweight Nytex material. * The bindings are molded around a man"s boot to cradle and pad the arch and ball of the foot, so there are no pressure points. * The lacing system holds your feet securely and easy Fast-Loc buckles make donning and doffing quick and simple. * 21 Inches - Optimized Weight Range is 80-160 lbs / 25 Inches -Optimized Weight Range is 150-200 lbs / 30 Inches -Optimized Weight Range is 180-250 lbs. * Includes FREE Carrying Tote Bag and Pair Anti-Shock Snowshoes walking poles.