Madshus` new line of race boots with micro-adjustable fit! At 410g per pair (for a size 42), these boots a great lightweight option for any racer. Constructed with a stiff Madshus Elite carbon outsole (compatible with the NNN binding system), and most notably, the BOA Fit System inner boot. These boots are stiff, light, and perfectly adjustable! The women`s model is designed with a slimmer sizing to have a better sized toebox and instep.