Throw your yoga mat over one shoulder or wear it across your back like Robin Hood with the prAna Piggyback Mat Strap. Durable reinforced cotton webbing will keep your mat secure while riding your bike or sprinting to a class about to close its door. Let your mat breathe in the open air after class with a classically simple and efficient design. Carrying your mat is a cinch with the Piggyback Mat Strap. Organic cotton webbing easily adjusts to fit over the ends of your yoga mat creating a shoulder strap to carry your mat with. Self-adjusting to fit any size mat. 1.25 (3.2 cm) wide. 100% Organic Cotton.