Men's Size Guide for O'Neill Wetsuits

O'Neill follows the sizes XS (XSmall), S (Small), M (Medium), etc.

When the letter S or T is added after the size indication, it is a Short (S) edition or a Tall (T) edition of this size.

So if you pick a wetsuit in Small with the size name ST it is a size Small in a Tall version.

S = Short
T = Tall

Size notice:
Feedback from our customers tells, that wetsuits feel small in size. But a tight fit is essential for the suit to work properly. However, beginners sometimes prefer easy usage and larger suits over the recommended tight fit. These customers normally choose one size bigger than the size guide recommends.

O'Neill Men's Wetsuit Size Chart

Imperial

Size	Height (In)	Weight (Lb)	Chest (In)	Waist (In)
XS	5'7" - 5'9"	125 - 140	36.5" - 37.5"	28.5" - 29.5"
10T	5'7" - 5'9"	135 - 155	34" - 36"	30.5" - 32"
S	5'8" - 5'10"	135 - 155	37.5" - 39"	29.5" - 31"
ST	6' - 6'2"	145 - 165	37.5" - 39"	29.5" - 31"
MS	5'6.5" - 5'8.5"	145 - 165	39" - 41"	31" - 33"
M	5'9" - 5'11"	155 - 170	39" - 41"	31" - 33"
MT	6'1" - 6'3"	160 -180	39" - 41"	31" - 33"
LS	5'7.5" - 5'9.5"	160 -180	41" - 43.5"	33" - 35"
L	5'10" -6'	170 - 190	41" - 43.5"	33" - 35"
LT	6'2" - 6'4"	180 - 200	41" - 43.5"	33" - 35"
XLS	5'8.5" - 5'10.5"	180 - 200	43.5" - 46"	35" - 37"
XL	5'11" - 6'1"	190 - 210	43.5" - 46"	35" - 37"
XLT	6'3" - 6'5"	200 - 220	43.5" - 46"	37" - 39"
2XLS	5'9.5" - 5'11.5"	200 - 220	46" - 48.5"	37" - 39"
2XL	6' - 6'2"	230 - 250	46" - 48.5"	37" - 39"
3XL	6' - 6'3"	230 - 250	48.5" - 51"	39" - 44"
4XL	6'1" - 6'4"	250 - 270	51" - 53.5"	44" - 48"

Metric

Size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
XS	170 - 175	57 - 64	93 - 95	72 - 75
10T	170 - 175	61 - 70	86 - 91	78 - 81
S	173 - 178	61 - 70	95 - 99	75 - 79
ST	183 - 188	66 - 75	95 - 99	75 - 79
MS	169 - 174	66 -75	99 - 104	79 - 84
M	175 - 180	70 - 77	99 - 104	79 - 84
MT	185 - 190	73 - 82	99 - 104	79 - 84
LS	171 - 176	73 - 82	104 - 111	84 - 89
L	178 - 183	77 - 86	104 - 111	84 - 89
LT	188 - 193	82 - 91	104 - 111	89 - 94
XLS	174 - 179	82 - 91	111 - 117	89 - 94
XL	180 - 185	86 - 95	111 - 117	89 - 94
XLT	190 - 195	91 - 100	111 - 117	94 - 99
2XLS	177 - 182	91 - 100	111 - 117	94 - 99
2XL	183 - 188	104 - 113	117 - 123	94 - 99
3XL	183 - 190	104 - 113	123 - 130	99 - 112
4XL	185 - 193	113 - 123	130 - 136	112 - 122

How to Measure

Follow the instructions below and compare your measurements with the size chart

Men’s Chest Circumference

Measure the circumference of the chest around the widest point.

Men's Waist Circumference

Measure the circumference of the waist around the most narrow point, after you breath out.

Tip! Use a soft measuring tape, to ensure that the product fits properly. Alternatively, use a piece of string and then measure it against a ruler