Butler Creek Comfort Stretch Alaskan Magnum Black Sling & Swivels (81033)COMFORT STRETCH FIREARM SLINGS Its stretchable construction and soft padding soak up the bounce you get with traditional slings reducing felt weight up to 50% so even the roughest hikes are smooth on your shoulder. Soft, flexible closed cell neoprene with Comfort Stretch backing. Dramatically reduces felt weight. Non slip Grippers keep it firmly in place. with Uncle Mikes QD Swivel sewn in.