Skip navigation and jump to content.

O'Neill Wetsuit Size Chart

Men

Sizes Height Weight Chest Waist Neck Inseam Forehead
Circumference
XXS 5'6" - 5'8" 115 - 130 32 1/2 - 34 1/2 27 - 29 14 27 7/8 - 28 7/8
XS 5'7" - 5'9" 125 - 140 34 1/2 - 36 1/2 28 - 30 14 1/2 28 1/4 - 29 1/4 20 1/2
S 5'8" - 5'10" 135 - 155 36 1/2 - 38 1/2 29 - 31 15 28 5/8 - 29 5/8 21 1/2
ST 6' - 6'2" 145 - 165 36 1/2 - 38 1/2 29 - 31 15 30 7/8 - 31 7/8
M 5'9" - 5'11" 150 - 170 38 1/2 - 40 1/2 30 1/2 - 32 1/2 15 1/2 29 - 30 22 1/2
MS 5'6 1/2" - 5'8 1/2" 140 - 160 38 1/2 - 40 1/2 30 1/2 - 32 1/2 15 1/2 27 1/2 - 28 1/8
MT 6'1" - 6'3" 160 - 180 38 1/2 - 40 1/2 30 1/2 - 32 1/2 15 1/2 31 1/4 - 32 1/4
L 5'10" - 6' 170 - 190 40 1/2 - 42 1/2 32 1/2 - 34 1/2 16 29 3/8 - 30 3/8 23 1/2
LS 5'7 1/2" - 5'9 1/2" 160 - 180 40 1/2 - 42 1/2 32 1/2 - 34 1/2 16 27 7/8 - 28 7/8
LT 6'2" - 6'4" 180 - 200 40 1/2 - 42 1/2 32 1/2 - 34 1/2 16 31 5/8 - 32 5/8
XL 5'11" - 6'1" 190 - 210 42 1/2 - 44 1/2 34 1/2 - 36 1/2 16 1/2 29 3/4 - 30 3/4 24 1/2
XLS 5'8 1/2" - 5'10 1/2" 180 - 200 42 1/2 - 44 1/2 34 1/2 - 36 1/2 16 1/2 28 1/4 - 29 1/4
XLT 6'3 1/2" - 6'5 1/2" 200 - 220 42 1/2 - 44 1/2 34 1/2 - 36 1/2 16 1/2 32 - 33
XXL 6' - 6'2" 210 - 230 44 1/2 - 46 1/2 36 1/2 - 38 1/2 17 30 1/8 - 31 1/8
XXXL 6' - 6'3" 230 - 250 47 - 49 41 1/2 - 43 1/2 17 1/4 30 1/8 - 31 1/8

Women

Sizes Height Weight Chest Waist Neck Inseam
4 5'4" - 5'6" 100 - 120 30 1/2 - 32 1/2 23 - 25 11 1/2 27 1/2 - 28 1/2
6 5'5" - 5'7" 105 - 125 31 1/2 - 33 1/2 24 - 26 12 27 3/4 - 28 3/4
8 5'6" - 5'8" 110 - 130 32 1/2 - 34 1/2 25 - 27 12 1/2 28 - 29
8S 5'4 1/2" - 5'6 1/2" 105 - 125 32 1/2 - 34 1/2 25 - 27 12 1/2 27 - 28
8T 5'7 1/2" - 5'9 1/2" 120 - 140 32 1/2 - 34 1/2 25 - 27 12 1/2 29 - 30
10 5'7" - 5'9" 120 - 140 34 - 36 26 1/2 - 28 1/2 13 28 1/4 - 29 1/4
10S 5'5 1/2" - 5'7 1/2" 115 - 135 34 - 36 26 1/2 - 28 1/2 13 27 1/4 - 28 1/4
10T 5'8 1/2" - 5'10 1/2" 130 - 150 34 - 36 26 1/2 - 28 1/2 13 29 1/4 - 30 1/4
12 5'8" - 5'10" 130 - 150 35 1/2 - 37 1/2 28 - 30 13 1/2 28 1/2 - 29 1/2
14 5'9" - 5'11" 140 - 160 37 - 39 29 1/2 - 31 1/2 14 28 3/4 - 29 3/4
16 5’11 - 6’ 160 - 180 38 1/2 - 40 1/2 31 - 33 14 1/2 29 - 30

Youth

Sizes Height Weight Chest Waist Neck Inseam
10 4’7"-4’10" 75-90 28-30 23-25 12 1/2 23-25
12 4’10"-5’1" 90-105 29-31 25-27 13 24-26
14 5’1"-5’4" 105-120 31-33 27-29 13 1/2 26-28
16 5’4"-5’7" 120-135 33-35 28-30 14 27-29