O'Neill Wetsuit Sizing
| U.S. MENS WETSUIT SIZE CHART | ||||
| SIZES | HEIGHT (in) | WEIGHT (lbs) | CHEST (in) | WAIST (in) |
| XS | 5'7" - 5'9" | 125 - 140 | 36 1/2 - 37" 1/2 | 28 1/2 - 29" 1/2 |
| S | 5'8" - 5'10" | 135 - 155 | 37 1/2 - 39" | 29 1/2 - 31" |
| ST | 6' - 6'2" | 145 - 165 | 37 1/2 - 39" | 29 1/2 - 31" |
| MS | 5'6 1/2" - 5'8 1/2" | 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 1/2" - 5'9 1/2" | 160 - 180 | 41 - 43" 1/2 | 33 - 35" |
| L | 5'10" - 6' | 170 - 190 | 41 - 43" 1/2 | 33 - 35" |
| LT | 6'2" - 6'4" | 180 - 200 | 41 - 43" 1/2 | 33 - 35" |
| XLS | 5'8 1/2" - 5'10 1/2" | 180 - 200 | 43 1/2 - 46" | 35 - 37" |
| XL | 5'11" - 6'1" | 190 - 210 | 43 1/2 - 46" | 35 - 37" |
| XLT | 6'3 - 6'5 | 200 - 220 | 43 1/2 - 46" | 35 - 37" |
| 2XLS | 5'9 1/2" -5'11 1/2" | 200 - 220 | 46 - 48" 1/2 | 37- 39" |
| 2XL | 6' - 6'2" | 210 - 230 | 46 - 48" 1/2 | 37 - 39" |
| 3XL | 6' - 6'3" | 230 - 250 | 48 1/2 - 51" | 39 - 44" |
| 4XL | 6'1" - 6'4" | 250 - 270 | 51 - 53" 1/2 | 44 - 48" |
| MEN'S METRIC SIZE CHART | ||||
| SIZES | HEIGHT (cm) | WEIGHT (kg) | CHEST (cm) | WAIST (cm) |
| XS | 170 - 175 | 57 - 64 | 92 - 95 | 72 - 74 |
| S | 173 - 178 | 64 - 70 | 95 - 99 | 74 - 78 |
| ST | 183 - 188 | 66 - 75 | 95 - 99 | 74 - 78 |
| MS | 169 - 174 | 66 - 75 | 99 - 104 | 78 - 83 |
| M | 175 - 180 | 70 - 77 | 99 - 104 | 78 - 83 |
| MT | 185 - 191 | 73 - 82 | 99 - 104 | 78 - 83 |
| LS | 171 - 177 | 73 - 82 | 104 - 110 | 83 - 88 |
| L | 178 - 190 | 77 - 86 | 104 - 110 | 83 - 88 |
| LT | 188 - 193 | 82 - 91 | 104 - 110 | 83 - 88 |
| XLS | 174 - 179 | 82 - 91 | 110 - 116 | 88 - 93 |
| XL | 180 - 185 | 86 - 95 | 110 - 116 | 88 - 93 |
| XLT | 191 - 196 | 91 - 100 | 110 - 116 | 88 - 93 |
| 2XLS | 176 - 181 | 91 - 100 | 116 - 123 | 93 - 99 |
| 2XL | 183 - 188 | 95 - 104 | 116 - 123 | 93 - 99 |
| 3XL | 183 - 191 | 104 - 114 | 123 - 129 | 99 - 111 |
| 4XL | 185-193 | 113-122 | 129 - 136 | 112-122 |
WOMEN'S WETSUITS
Body Measurements in Inches
| U.S. WOMEN'S WETSUIT SIZE CHART | ||||
| SIZES | HEIGHT | WEIGHT | CHEST | WAIST |
| 2 | 5'1" - 5'3" | 90 - 105 | 30 - 32" | 24 1/2 - 26" 1/2 |
| 4 | 5'3" - 5'5" | 100 - 115 | 30 1/2 - 32" 1/2 | 25 - 27" |
| 6S | 5'2 1/2" - 5'4 1/2" | 105 - 120 | 31 1/2 - 33"1/2 | 26 - 28" |
| 6 | 5'4" - 5'6" | 110 - 125 | 31 1/2 - 33" 1/2 | 26 - 28" |
| 8S | 5'3 1/2" - 5'5 1/2" | 115 - 130 | 32 1/2 - 34" 1/2 | 27 - 29" |
| 8 | 5'5" - 5'7" | 120 - 135 | 32 1/2 - 34" 1/2 | 27 - 29" |
| 8T | 5'6 1/2" - 5'8 1/2" | 125 - 140 | 32 1/2 - 34" 1/2 | 27 - 29" |
| 10S | 5'4 1/2" - 5'6 1/2" | 125 - 145 | 34 - 36" | 29 - 30" 1/2 |
| 10 | 5'6" - 5'8" | 130 - 150 | 34 - 36" | 29 - 30" 1/2 |
| 10T | 5'7 1/2" - 5'9 1/2" | 135 - 155 | 34 - 36" | 29 - 30" 1/2 |
| 12S | 5'5.5" - 5'7.5" | 135 - 155 | 35 1/2 - 37" 1/2 | 30 1/2 - 32" |
| 12 | 5'7" - 5'9" | 140 - 160 | 35 1/2 - 37" 1/2 | 30 1/2 - 32" |
| 12T | 5'8.5" - 5'10.5" | 145 - 165 | 35 1/2 - 37" 1/2 | 30 1/2 - 32" |
| 14 | 5'8" - 5'10" | 150 - 170 | 37 - 39" | 31 - 33" 1/2 |
| 16 | 5’9 - 5'11" | 165 - 185 | 38 1/2 - 40" 1/2 | 33 1/2 - 35" |
| WOMEN'S METRIC SIZE CHART | ||||
| SIZES | HEIGHT | WEIGHT | CHEST | WAIST |
| 2 | 154 - 160" | 40 - 47 | 76 - 81" | 62 - 67" |
| 4 | 160 - 165" | 45 - 52 | 77 - 82" | 63 - 68" |
| 6 | 162 - 167" | 49 - 56 | 80 - 85" | 66 - 71" |
| 6S | 158 - 164" | 47 - 54 | 80 - 85" | 66 - 71" |
| 8 | 165 - 170" | 54 - 61 | 82 - 87" | 68 - 73" |
| 8S | 161 - 166" | 52 - 59 | 82 - 87" | 68 - 73" |
| 8T | 168 - 173" | 56 - 63 | 82 - 87" | 68 - 73" |
| 10S | 163 - 168" | 56 - 65 | 86 - 91" | 73 - 77" |
| 10 | 167 - 172" | 59 - 68 | 86 - 91" | 73 - 77" |
| 10T | 171 - 176" | 61 - 70 | 86 - 91" | 73 - 77" |
| 12S | 166 - 171" | 61 - 70 | 90 - 95" | 77 - 81" |
| 12 | 170 - 175" | 63 - 72 | 90 - 95" | 77 - 81" |
| 12T | 174 - 179" | 65 - 74 | 90 - 95" | 77 - 81" |
| 14 | 172 - 177" | 68 - 77 | 93 - 99" | 79 - 85" |
| 16 | 175 - 180" | 72 - 81 | 97 - 102" | 85 - 89" |