Product Video Made to fit all bodies. Nylon webbing strap extension with side release buckle hardware to attach to the strap of any KAVU Rope Collection sling pack style or Spectator belt bag. Size (S): for KAVU mini sling pack styles, Takealong and the Coho Sling. Size (L): for KAVU regular rope sling pack styles, Roam Sling, Spectator belt bag styles, Washtucna, Point Sur, Cattle Point, Pint Size and Topspin. Strap Length: 11" Fabric: Nylon Replacement buckles can be purchased HERE !