M tile waist circumference, about 34CM or so, about 45CM pants length generally suitable for 95 pounds to 120 pounds
L tile waist, about 36CM or so, about 47CM long pants generally suitable for 120 to 140 pounds
XL tile waist, about 38CM or so, about 49CM long pants generally suitable for 140 to 160 pounds
XXL tile waist, about 40CM or so, about 51CM long pants generally suitable for 160 to 190 pounds
XXXL tile waist, about 42CM or so, about 53CM long pants generally suitable for 190 to 220 pounds