Use these official O'Neill wetsuit measurements to compare your height, weight, chest and waist before choosing a wetsuit size. Sizes are listed in US inches and pounds.
Men's Wetsuits
Men's Wetsuit Size Chart
| Size | Height | Weight (lb) | Chest (in) | Waist (in) |
|---|---|---|---|---|
| XS | 5′7″–5′9″ | 125–140 | 36½–37½ | 28½–29½ |
| S | 5′8″–5′10″ | 135–155 | 37½–39 | 29½–31 |
| ST | 6′–6′2″ | 145–165 | 37½–39 | 29½–31 |
| MS | 5′6½″–5′8½″ | 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′7½″–5′9½″ | 160–180 | 41–43½ | 33–35 |
| L | 5′10″–6′ | 170–190 | 41–43½ | 33–35 |
| LT | 6′2″–6′4″ | 180–200 | 41–43½ | 33–35 |
| XLS | 5′8½″–5′10½″ | 180–200 | 43½–46 | 35–37 |
| XL | 5′11″–6′1″ | 190–210 | 43½–46 | 35–37 |
| XLT | 6′3″–6′5″ | 200–220 | 43½–46 | 35–37 |
| 2XLS | 5′9½″–5′11½″ | 200–220 | 46–48½ | 37–39 |
| 2XL | 6′–6′2″ | 210–230 | 46–48½ | 37–39 |
| 3XL | 6′–6′3″ | 230–250 | 48½–51 | 39–44 |
| 4XL | 6′1″–6′4″ | 250–270 | 51–53½ | 44–48 |
S = short when appended to a size; T = tall. Refer to the full height and body measurements to choose the right fit.
Women's Wetsuits
Women's Wetsuit Size Chart
| Size | Height | Weight (lb) | Chest (in) | Waist (in) |
|---|---|---|---|---|
| 2 | 5′1″–5′3″ | 90–105 | 30–32 | 24½–26½ |
| 4 | 5′3″–5′5″ | 100–115 | 30½–32½ | 25–27 |
| 6S | 5′2½″–5′4½″ | 105–120 | 31½–33½ | 26–28 |
| 6 | 5′4″–5′6″ | 110–125 | 31½–33½ | 26–28 |
| 8S | 5′3½″–5′5½″ | 115–130 | 32½–34½ | 27–29 |
| 8 | 5′5″–5′7″ | 120–135 | 32½–34½ | 27–29 |
| 8T | 5′6½″–5′8½″ | 125–140 | 32½–34½ | 27–29 |
| 10S | 5′4½″–5′6½″ | 125–145 | 34–36 | 29–30½ |
| 10 | 5′6″–5′8″ | 130–150 | 34–36 | 29–30½ |
| 10T | 5′7½″–5′9½″ | 135–155 | 34–36 | 29–30½ |
| 12S | 5′5½″–5′7½″ | 135–155 | 35½–37½ | 30½–32 |
| 12 | 5′7″–5′9″ | 140–160 | 35½–37½ | 30½–32 |
| 12T | 5′8½″–5′10½″ | 145–165 | 35½–37½ | 30½–32 |
| 14 | 5′8″–5′10″ | 150–170 | 37–39 | 31–33½ |
| 16 | 5′9″–5′11″ | 165–185 | 38½–40½ | 33½–35 |
S = short when appended to a size; T = tall. Compare height and body measurements, not size number alone.
How to Measure for an O'Neill Wetsuit
- Chest: Measure around the fullest part of your chest, keeping the tape level.
- Waist: Measure around your natural waist without pulling the tape tight.
- Height: Stand straight without shoes.
- Weight: Use your current body weight to cross-check the size range.
A wetsuit should fit snugly without restricting breathing or movement. Check all four measurements; if you fall between sizes, consult the product's fit guidance.
Sizing source: O'Neill official size charts. Not intended for booties, gloves, or rash guards.