My newest Summit Climber came with a different harness than the one a few years back. The leg/crotch straps have buckles and straps that should fit any stature, I am 55 and 5’10” at 220 lbs and I have 18” or so extra strap on each leg. Always use with my climber even on the way up and down. Use for my ladders also. Have a large permanent with sturdy rails that I do not use it on.

By the way OSHA says any fall over 6 foot can be lethal.