We like the Biothane material that we use in our mathc slings so much that we had a service rifle sling made of the same material. Leather cracks and stretches, but the Biothane material is almost indestructible regardless of the weather or conditions. Biothane is made by fusing a polyester web inside a urethane casing which makes an extremely strong sling. This material is extremely comfortable in any shooting position and wraps around the arm perfectly. This sling is approved for Civilian Marksmanship Program (CMP) matches. It includes two Biothane keepers that do not move when put in place. Hooks are made of steel and are riveted on with 3 rivets. The sling measures 54 inches, which will accomodate almost all shooters. Available in black only. This is also an excellent sling for tactical shooters because the material makes the sling extremely quiet.
Sinclair, Issue:5B, Page:220