Height
Weight
Chest
Sleeve Length From Center Back
X-Small
48" - 51"
121 - 129
49 - 55lbs
22 - 25kgs
24" - 26"
61 - 66
24" - 25½"
61 - 65
Small
51" - 54"
130 - 137
56 - 68lbs
27 - 31kgs
26" - 28"
68 - 71
25½" - 27"
66 - 68
Medium
54" - 58"
138 - 147
72 - 86lbs
32 - 43kgs
28" - 30"
73 - 76
27" - 28½"
70 - 73
Large
59" - 64"
149 - 162
100 - 115lbs
44 - 52kgs
31" - 33"
78 - 84
28½" - 30"
74 - 76
X-Large
64" - 68"
164 - 172
125 - 135lbs
55 - 61kgs
34" - 36"
86 - 91
30" - 32"
77 - 81