Spark Riser Kits line-skis the new Function X was

the new Function X was re-engineered to provide max comfort and warmth for resort skiers and riders

patented Spectral Braid is a first-of-its-kind variable-angle fiber reinforcement that allows for precision-tuned torsion and flex by altering the fiber orientation along the length of the ski

integrated helmet net

Versatile: compatible with all AVABAG LiTRIC FREERIDE and TOUR Zip attachments

team-designed hi-backs join forces with pro-grade straps and plenty of cushioning to give kids the comfort and performance required for a full day on the mountain

Spark Riser Kits line-skis the new Function X wasEspecially helpful for riders with large boot sizes, Riser Kits increase the binding rotation angle while touring, preventing toe strike and increasing stride length. Comes in two versions Tesla and T1 Risers. S+W Verdict "Simple product that works, exellent option for riders with larger feet"