X-Small 13" rise, 9" t- 15" waist, 5" - 7" leg, 5-11 lbs.
Small 15"rise, 10"-18" waist, 5"-10"leg, 9 - 16 lbs
Medium 17"rise 12"-21"waist 7"-14"leg 14 - 22 lbs
Large 18"rise 14"-24"waist 8"-15"leg, 22 - 32 lbs
X - Large 19"rise, 15"-27"waist, 8"-17"leg, 32 lbs +