The original Air Cushion Sling by Vero Vellini, it all started with this assortment of 4 classic colors, and they're still among the most popular slings theyoffer. Since there is no edge piping, you get a bit more stretch, but because of the 3-layer Air Cushion laminated "sandwich" cut, there won't be any "bounce" in your gun while you're walking or moving quickly.