Ive worked as a tree climber for many years, and Iam also a treestand hunter. I dont know the name of the safety strap I wear but it sale around $30. Its equipped with a safety belt for around your waist and a d-ring and adjustable safety harness with a clip. The safety harness goes around the tree and clips to the d-ring. Great for climbing and setting stands, but when your climbing a tree with many limbs you have to quickly remove the safety harness and place it above the limb to continue the climb. But the quick release clip works fast and convenient, also It makes setting stands much easier. I just lean back on the safety harness, and both hands are free for placing your stand. I bought this at Walmart and find it to be one of the best for treestand hunting.