Mystery Ranch did it again with another great product. The Hands Free Rifle Sling is nothing but quality. From the harness material itself and the amazing design of the buckle. After watching a few videos on how it works, I made the purchase. When the product arrived I attached it to my Mystery Ranch Metcalf pack and was having extreme difficulties keeping it on my shoulder. I have round thick shoulders and I couldn't find a way to keep it from falling off my shoulder even while properly attached. I went on the internet and read a lot of reviews on this product and how bad the product was because of this same issue. I was confused and disgusted with hearing several hunters whining about the issue. I believed in the product and figured out a solution for me and my body type. The truth is, the Mystery Ranch Hands Free Rifle Sling is a great product! It just needed a slight modification under a small minor detail, "A second attachment place for hunters like me." My rifle is snug to the pack and all I need to do is use one hand to undo the main chest buckle at the same time the other hand undoes the clip on the shoulder.