• xs = 5 1/4"-10 1/2" body length, 7" chest circumference, under 5 lbs. weight
• s = 5 3/4"-11 3/4" body length, 10" chest circumference; 5-25 lbs. weight
• m = 6.25-13” body length, 13" chest circumference, 25-75 lbs. weight
• l = 7" - 14" body length, 15 3/8" chest circumference; 75-100 lbs. weight
• xl = 7 3/4"-15" body length, 17 3/4" chest circumference, 100 lbs. and up weight
• xxl = 8 1/2"-16" body length, 20"-inch chest circumference, over 100 lbs. weight
