This Buckingham Titanium Tree Climber is a popular choice. It features a contoured shank, an offset stirrup, and a dowel & screw style replaceable gaff. Also included is nylon foot straps, and standard length sleeves  that adjust from 16 1/4" to 18 3/4". Climber with gaff weighs 1 lb. 3.6 oz. Upper straps and pads sold separately.