New Balance 813v3 cross training shoes will maximize your comfort and your workout with excellent cushion and flexibility. Move from the elliptical to boot camp or kickboxing class without missing a step or having to change your shoes. You'll be able to move freely thanks to the 4-way stretch mesh upper and no-sew overlays.Upper: Flat laces reduce irritation and pressure points. Padded tongue and heel collar enhance comfort. Synthetic overlays enhance support. Breathable mesh allows for greater flexibility and airflow.Midsole: Cardio Comfort combines premium dual-density insert, a super-supportive bed and lightweight construction. Removable insole.Outsole: Ndurance® rubber compound offers maximum durability used in high wear areas.