🏄 Wetsuit Thickness Guide
Enter your water temperature and activity to find the right wetsuit. Includes suit type guide, reference table, and layering recommendations.
| Water Temp | Thickness | Suit Type | Activity |
|---|
How to Choose Wetsuit Thickness
Wetsuit thickness is measured in millimetres (mm). A "3/2mm" suit has 3mm of neoprene on the core and 2mm on the arms and legs — thicker where heat loss is highest, thinner for flexibility at the joints.
Activity matters as much as temperature. Divers are stationary and lose heat faster than surfers who are paddling actively. Swimmers and triathletes generate more body heat and may wear thinner suits than the temperature alone would suggest.
Individual cold tolerance varies significantly. If you tend to run cold, add one thickness level to the recommendation. Always prioritise safety in very cold water — cold incapacitation can occur rapidly.