Abstract: The present invention is directed to a sling climbing harness for use in industrial and recreational activities where the climbing harness is worn by a user to securely attach themself to a safety rope or other device. The climbing harness provides a waistbelt and/or leg loops each including one or more adjustable spliced sling loops. Each of the one or more sling loops is a cord having a first end formed into a fixed loop and a second end passing through the fixed loop and spliced into an adjustable loop to form an adjustable locking connection. The user can then adjust each sling loop individually for a custom fitment of the waistbelt or leg loops of the present invention.