The Biathlon Pro from Sterling is a multi-pitch climbing dream shaper. This 10.1mm dual color pattern rope is light at 63 g/m and allows you to easily distinguish the middle of your cord. Never again, guess about both ends being equal when stepping up to rappel. This rope is a performer with brawn. Sterling has given you a double-pick sheath and a beefy core in your lifeline, but it is up to you to pick a dependable belayer to man this masterpiece.