Where to Buy Plus Size Wetsuits for Wild Swimming in the UK

There is a particular kind of magic found in British waters. Whether it’s the invigorating chill of a Cornish cove, the peaty embrace of a Highland loch, or a serene sunrise glide across Lake Windermere, wild swimming has captured the nation’s heart. It is a sport that promises mental clarity, physical vitality, and a profound connection to our rugged landscape.

However, for many years, a significant barrier stood between a large portion of the population and the shoreline: the wetsuit.

Historically, the outdoor industry seemed to think that swimmers stopped at a size 14. For plus-size women and men, the “wetsuit struggle” became a source of anxiety—fighting with neoprene that was too tight in the thighs, too long in the arms, or simply refused to zip over a bust or belly.

But it’s 2026, and the tide has finally turned. The British wild swimming community is one of the most inclusive in the world, and brands are finally catching up. In this guide, we’ll explore the best places to find plus-size wetsuits that actually fit, flatter, and—most importantly—keep you warm in our glorious (and often freezing) British waters.

The Importance of a Proper Fit (No More “Sausage Casing” Feel)

A wetsuit works by trapping a thin layer of water between your skin and the neoprene. Your body heat warms this water, creating a thermal barrier. If a suit is too tight, it restricts your breathing and movement; if it’s too loose, cold water “flushes” through, and you’ll be shivering in minutes.

For curvy swimmers, the “standard” cut often fails at the hips and chest. You need a suit designed with “Active Curves” in mind—neoprene that offers high-stretch panels in the gusset and shoulders, and a cut that acknowledges that human bodies come in all shapes.

Top Places to Buy Plus-Size Wetsuits in the UK

We’ve scoured the UK market for brands that don’t just “scale up” their small sizes but actually redesign their suits for larger bodies.

1. Alpkit – The Homegrown Hero

Based in the Peak District, Alpkit is a champion of the “Outdoors for Everyone” movement. Their Terrapin and Silvertip ranges are legendary in the UK swimming community. They offer a fantastic range of sizes (up to UK 20/22 and beyond in certain styles) and, crucially, they provide detailed “real-world” measurements on their website. Their neoprene is incredibly supple, making the “on-off” dance at the water’s edge much easier.

2. Lomo Watersports – The Glasgow Powerhouse

If you want honest gear that works, look to Lomo. Based in Glasgow, they understand cold water better than anyone. Lomo is famous for its inclusive sizing, often going up to 3XL and 4XL. Their suits are built for the rugged conditions of the North Sea and the Atlantic. They are also arguably the best value for money in the UK.

3. Orca – The Technical Specialist

For those looking to transition from casual dipping to distance swimming or triathlons, Orca is the gold standard. Their Athlex and Vitalis ranges now feature more inclusive sizing options. Orca uses high-end Yamamoto neoprene, which provides incredible buoyancy—a huge plus for swimmers who want a little extra lift in the water.

4. Blue Seventy – The Comfort Kings

Blue Seventy has a dedicated following among curvy swimmers thanks to their “Athena” (women) and “Zeus” (men) fit categories. These aren’t just larger sizes; they are specifically patterned for broader shoulders and wider hips. Their suits often feature lower necklines, which many swimmers find more comfortable and less “claustrophobic.”

5. Decathlon (Nabaiji/Olaian) – The Accessible Entry

Decathlon has made massive strides in its inclusive range. While their sizing can sometimes run small (always check the cm measurements!), their high-stretch neoprene suits in the 4/3mm range are an excellent, affordable entry point for those just starting their wild swimming journey.

Comparison Table: Plus-Size Wetsuit Brands

Three Tips for Trying on a Wetsuit at Home

Buying online can be daunting. Here’s how to handle the “home fitting”:

1. The Plastic Bag Trick: Put a compostable plastic bag over your feet and hands. They will slide through the neoprene sleeves like magic.

2. Don’t Panic: Putting on a wetsuit is a workout in itself. If you’re sweating and slightly out of breath, you’re doing it right.

3. Check the “Gap”: Once the suit is on, ensure there isn’t a massive pocket of air at the small of your back. This is where cold water likes to settle.

FAQ: Your Wetsuit Worries Solved

1. I’m between sizes, should I size up or down?

In neoprene, if you are between sizes, it is generally better to size up for comfort, especially in the torso. A suit that is too short in the body will pull painfully on your shoulders and crotch.

2. Can I use a surfing wetsuit for swimming?

Yes, but with a caveat. Surfing suits are designed for durability and sitting on a board. Swimming-specific suits (like those from Alpkit or Orca) have thinner neoprene under the arms to prevent “chafing” during your stroke.

3. What thickness do I need for the UK?

For most of the year (May to October), a 3/2mm suit is perfect. If you plan on swimming through the winter or early spring, you’ll definitely want a 4/3mm or even a 5/4mm suit, plus boots and gloves.

4. How do I care for my plus-size wetsuit?

Rinse it inside and out with fresh water after every dip. Hang it to dry doubled over a thick hanger (never by the shoulders, as the weight of the wet neoprene will stretch them out).

5. Are there “shorty” versions for curvy bodies?

Absolutely. Many brands offer “Shorty” suits (short sleeves and legs). These are much easier to get into and are great for summer dips in the South Coast or for those who find full suits too restrictive.