Thicker neoprene is warmer, but it's also less stretchy. Wetsuits come in different combinations of thicknesses, measured in millimetres, and visible in the wetsuit's description as one, two or three numbers.
The first number listed, X, refers to the neoprene thickness around your core, where you need the most insulation. The next number(s), Y and Z, will refer to the thickness on your arms and legs, where you'll want more flexibility and won't need as much insulation, so you'll benefit from a thinner neoprene.
What you need will depend on where (and when!) you plan to use your wetsuit.
As a starting point, check the average water temperature at your favourite surf spot at the time of year you plan to get the most use out of your new suit, and choose the option in our wetsuit temperature guide that matches up best.
18-24℃:1-2mm Shorty Wetsuit
- Thinnest option available.
- Super lightweight and stretchy, so no paddle exhaustion or overheating.
- Great for keeping off windchill on early summer mornings and also offers UV protection.
- Available in a mix of long-sleeves, short-sleeves, sleeveless, full-legged and short legged options.
- A pair of boardshorts and a neoprene top or rash vest work as an alternative when it's really hot.
- You won't need boots for warmth in these conditions, but a lightweight pair of 1 or 2mm reef boots will help protect your toes on rocky beaches or reefs.
10-18℃:3mm Full Wetsuit
- Our most popular style of wetsuit.
- Most versatile option , great for seeing you through summer and early autumn.
- Perfect for those new to watersports who need a reliable all-rounder.
- Body full body thickness of 3 mm,Partial 3/2mm wetsuit is 3mm thick around the core, and 2mm through the arms and legs.
- Full coverage but lots of flexibility to move about in.
- Some of our 3/2 wetsuits also include a thermal lining to keep you warm further into the autumn.
6-10℃:5mm Full Wetsuit
- For anyone keen to surf through the winter, this is an ideal winter wetsuit thickness.
- Full body thickness 5mm,partial 5/4 and 5/3mm wetsuit is 5mm around the core, 4 or 3mm on the limbs.
- Well worth opting for a lining as well, available on most of our mid-range to premium wetsuits.
- Boots and gloves are a must.
- A wetsuit hood is also a good idea.
0-6℃:7mm Full Wetsuit
- For those who chase winter swells, suitable for cold seas.
- Full body 7mm – you'll be snug as a bug in one of these.
- It's worth noting that a thicker wetsuit will be slightly less flexible, but it's better than being cold!
- Boots, gloves and a hood are a must have for these conditions.
Once you've matched up the best option for the water temperature, choose whether any of the below considerations apply, in which case consider adding 1mm to the wetsuit thickness suggested:
- The weather: If it's particularly windy, you'll need a thicker suit to protect you from the windchill.
- Changing seasons: The water temperature is warmest at the beginning of autumn, but the air temperature will be dropping at this time too, so you'll find yourself feeling colder out of the water. At the beginning of Spring, even though the weather is getting warmer, water temperatures are at their coldest.
- Personal preference: If you know you usually get cold quicker than your friends, don't shy away from getting a thicker wetsuit.