The O'Neill R&D process provides the best quality, fit and functionality in the industry. Our USCG life vests continue to set new standards of excellence in design for all wake and waterski athletes.
| Size | Chest Measurement |
| 4 | 30-33 inches |
| 6 | 33-36 inches |
| 8 | 36-39 inches |
| 10 | 39-42 inches |
| 12 | 42-45 inches |