Swimming wetsuit buying guide

Introduction

Outdoor swimming is growing in popularity, and it's easy to see why. Beyond the physical benefits, it has a positive impact on mental health. Swimming also offers a unique way to connect with nature and explore new areas.

Thanks to years of research and development, swim-specific wetsuits are now more efficient and comfortable than ever. They act like a second skin, providing the protection and performance you need.

If you’re new to the sport or considering an upgrade, this guide will help you make an informed choice.

Why choose a swimming wetsuit

If you're planning to swim outdoors in the UK, investing in a wetsuit is a smart move. While a multi-purpose surf wetsuit might seem enough, a swimming wetsuit can significantly improve your performance in races, timed events, and even your stroke efficiency.

The key benefits of using a swimming wetsuit:

Warmth: Essential for open water swimming, especially during colder months.

Buoyancy: Wetsuits provide extra floatation, helping to improve your swimming position. Some suits offer more buoyancy in the legs, aiding technique.

Speed: Designed to reduce drag in the water, swim-specific wetsuits enhance your efficiency and speed.

Protection: In the ocean, particularly during jellyfish season, a wetsuit offers a layer of protection.

The difference between swimming and multi-purpose wetsuits

Multi-Purpose Wetsuits:

Made with thicker neoprene for durability and stretch

Varying thickness across the chest, legs, and arms, with a focus on warmth

Reinforced in high-wear areas like the knees

Typically use double-lined neoprene, which is durable but thicker and less smooth

Swimming Wetsuits:

Made with thinner neoprene for better movement

Prioritise flexibility and stretch for an unrestricted swim stroke

Vary thickness strategically to aid buoyancy and swimming technique

Use single-lined neoprene for a smoother finish, improving speed and efficiency

Feature a low neckline to avoid neck restriction while swimming

Swim-specific wetsuits are the best choice for open water swimming, offering clear advantages over multi-purpose wetsuits

Key features of a swimming wetsuit

Material

Swimming wetsuits use neoprene differently from surf wetsuits. They typically feature single-lined neoprene, which has a nylon lining on the inside only. This construction protects against windchill while allowing water to run off easily, keeping you lighter and more streamlined.

Seams

Wetsuits are constructed with either flatlock or glued blind-stitched seams. Flatlock seams, found in cheaper wetsuits, are best suited for summer as they allow some water penetration. Glued blind-stitched seams, found in higher-end suits, are watertight, flexible, and durable, making them ideal for cold water use.

Thickness

The thickness of neoprene affects a wetsuit's warmth, durability, flexibility, and buoyancy. While thicker neoprene provides more warmth, swim wetsuits use varying thicknesses across different panels to optimise buoyancy and movement. For example, thinner neoprene is used in the arms and shoulders for better flexibility, while slightly thicker neoprene at the hips helps your body sit higher in the water. If you tend to drag your feet while swimming, look for a wetsuit with thicker neoprene in the legs to help lift your feet and improve your technique.

Swim run wetsuits

Increased stretch: To avoid restricting your running movement, swimrun suits typically use more stretchable and thinner materials in the legs.

Front zip: Allows for better breathability and heat regulation while running.

Short sleeves/legs: Offers more comfort for running and helps prevent overheating.

Pockets: Internal and external pockets for carrying essential equipment.

How should your wetsuit fit?

Fitting tips

Ensure the wetsuit pulls in around your lower back without leaving a big gap. If there’s excess fabric, the suit is too big and may allow water in.
With your arms parallel to the ground, the wetsuit should be close to your armpits with slight folds on top of the shoulders.
When you extend your arms in front and cross them at the wrists, check for a minimal gap at the neckline.
Remember, a correctly fitted wetsuit may feel slightly uncomfortable on land, but it will work seamlessly with your body once you're in the water.

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