What Wetsuit Do I Need? A Beginner’s Guide

If you’re new to surfing, wild swimming, paddleboarding or any kind of cold-water adventure, one of the first questions you'll ask is: What wetsuit do I need? With so many options out there, it can be a bit overwhelming. But don’t worry—this beginner-friendly wetsuit guide will help you choose the right wetsuit for your activity, the season, and your comfort.


Why You Need a Wetsuit

Wetsuits are made from neoprene and are designed to trap a thin layer of water between your body and the suit. Your body heats up this water, creating insulation that keeps you warm in cold conditions. A good wetsuit also offers UV protection, buoyancy, and a little extra padding against scrapes and knocks.


Key Things to Consider:

 

1. What Will You Be Doing?

Different activities need different levels of flexibility and warmth:

Surfing: Look for full suits with good flexibility in the arms and shoulders.

Swimming/Wild Dipping: Choose a suit with a snug fit and thinner neoprene for unrestricted movement.

Paddleboarding: Opt for comfort and ease of movement, especially in the shoulders.

 

2. What Time of Year Are You Going In?

Wetsuits come in various thicknesses to suit different seasons. Here’s a simple breakdown:

Summer (17°C+): 2mm shorty or a 3/2mm full suit

Spring/Autumn (12–17°C): 3/2mm or 4/3mm full suit

Winter (Under 12°C): 5/4mm or thicker, plus boots, gloves and a hood

3. Where Will You Be?

UK waters tend to be cold most of the year, so it’s better to go slightly thicker unless you’re heading abroad. Cornwall, for example, might be warm enough for a 3/2mm suit in summer, but you’ll want at least a 5/4mm for winter waves.


Understanding Wetsuit Thickness


Wetsuit thickness is listed in millimetres—for example, 5/4mm means 5mm neoprene in the torso and 4mm in the limbs. The thicker the neoprene, the warmer (but less flexible) the wetsuit. Your core stays warm while your arms and legs stay mobile.

Getting the Right Fit

Fit is everything. A wetsuit should feel snug but not restrictive. Too loose and cold water will flush through; too tight and it’ll be uncomfortable.

No gaps around the neck, wrists or ankles

No big wrinkles in the neoprene

• You should be able to move comfortably and breathe easily

If you're in-between sizes, check the brand's size guide or try on a couple of options if possible.

Final Tips for Beginners

Don’t forget the extras: boots, gloves and hoods make a huge difference in winter.

Always rinse your wetsuit in fresh water after use.

If you’re unsure, start with a versatile 4/3mm full suit that works in a wide range of UK conditions.


Ready to Find Your First Wetsuit?

Explore our full range of men’s, women’s and kids’ wetsuits at Ann’s Cottage. Whether you’re jumping into the surf or dipping your toes into wild swimming, we’ve got the perfect wetsuit to get you started.

Shop beginner-friendly wetsuits now at AnnsCottage.com – with top brands like Rip Curl, C-Skins, O’Neill and more.

What Thickness do i need ?

If you’re unsure, start with a versatile 4/3mm full suit that works in a wide range of UK conditions.

Do i need boots?

In the summer, they can help protect you feet from rocks & stones. In the winter they make a huge difference to keeping you warm 

How does a wetsuit work ?

Made from neoprene and are designed to trap a thin layer of water between your body and the suit. Your body heats up this water, creating insulation that keeps you warm in cold conditions. A good wetsuit also offers UV protection, buoyancy, and a little extra padding against scrapes and knocks.

How do i care for my wetsuit ?

Always rinse your wetsuit in fresh water after use, check out our blog on this for more ticks and tips 

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What Wetsuit Do I Need? A Beginner’s Guide