Size Code Age Recommendation Length (in) Chest (in) Recommended Height (in) Weight (lbs)
S 2-3 Years 15" 19.7" 31.5-37.4 4.4 lbs
M 4-5 Years 15" 21.7" 37.4-41.3 4.7 lbs
L 6-7 Years 15.4" 23.6" 41.3-47.2 5.2 lbs
XL 8-9 Years 15.7" 25.6" 47.2-55.1 5.6 lbs
XXL 10-12 Years 15.7" 27.6" 55.1-63 6.1 lbs