Size Material Neck (in) Chest (in) Neck (cm) Chest (cm)
XXS Neoprene 9 ½ - 13 11 ½ - 14 ½ 24 - 32 28 - 38
XS Neoprene 11 ½ - 14 ½ 14 ½ - 18 ½ 29 - 36 36 - 48
S Cotton Canvas 13 - 18 ½ 15 - 20 32 - 48 38 - 52
M Cotton Canvas 16 - 23 ½ 19 - 25 40 - 60 48 - 64
L Cotton Canvas 19 - 27 ½ 25 ½ - 34 ½ 48 - 70 64 - 88
XL Cotton Canvas 24 - 33 33 - 41 60 - 85 83 - 105