An international reputation for quality & customer care
When it comes to drysuits, wetsuits and diving equipment, we’re told we are second to none.
Drysuit innovation & deep technical expertise with unsurpassed customer experience
35+ years
Designed around real international diving conditions
British designed
Great design and craftmanship result in diving products that function at every level
Built to last
Serviceable and repairable with by an experienced UK support team
4.9/5 rating
Trusted by divers at the forefront of the industry
Experienced
Best customer care by specialists in the world of drysuit diving
find your drysuit
Port10 Drysuit
Trusted, proven, practical and hard-wearing.
Solid reliability built around a suit packed with quality and features.
Using the same high end components and our super supple neoprene seals, the Port 10 Drysuit is equipped to withstand the rigours of commercial diving, whilst appealing to the newly qualified diver
For four decades, O’Three has built its reputation on one thing: a properly tailored 5mm neoprene drysuit, worn with the correct undersuit.
The new MF5 honours that legacy while moving it forward, delivering enhanced insulation, comfort, flexibility and durability. True to our heritage and engineered for today’s diver, it’s built to perform for years to come.
North or south of the Equator, the 90Ninety is the perfect travel companion. Lightweight, low volume, ultra-flexible, front entry with telescopic torso.
Quick change neck and wrist seal systems so you never miss a dive.
Reinforced areas means the 90Ninety will meet the demands of experienced cave, technical and recreational divers alike.
Our neoprene drysuits are ready-to-dive and can be made-to-fit to your precise needs. Sounds easy, but sometimes customers can fall in-between sizes. That’s why for absolute peace of mind we offer a Free Online Fitting service. Alternatively, our made-to-measure service is available for all our neoprene and trilaminate drysuits.
Off the peg
Dive ready neoprene suits. 80% of our customers fall into this category.
Made to fit
Several free of charge adjustments can be made to your drysuit if required. For more complex adjustments we charge an additional £125.00
Free online home fitting
From the comfort of your own sofa, we can offer a virtual fitting service where a suit or suits are delivered to your door and we guide you towards the perfect fit
Our team is always at hand to help you choose either a neoprene or trilaminate drysuit based on your diving environment, warmth preferences and travel requirements.
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We’ll confirm your measurements before production
Once you have chosen your drysuit design and material, our team will contact you to confirm sizing and recommend adjustments that might be required prior to dispatch
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Your drysuit will be made to fit at no extra cost*
All of our drysuits come complete and ready to dive with several adjustments completely free of charge. If your drysuit requires more complex adjustments like increasing or reducing diameters, an additional labour charge of £125.00 is applied.
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Go diving!
Your made-to-fit suit delivered to you, complete with a quality suit bag, changing mat, Jollop seal lube and Bees wax – everything you need for your first dive in your O’Three drysuit!
I purchased an O’Three MF5 drysuit and have been thoroughly impressed. The service was excellent, with the team providing knowledgeable and attentive customer support. The suit included all necessary lubricants and accessories, making it ready to use straight away.
In the water, the suit has performed exceptionally well. It’s clear that O’Three takes great care in both craftsmanship and customer experience. Highly recommended for anyone looking for a high-quality drysuit with top-tier support.
Recommended by diving communities throughout the world
Discover reviews from
Verified Customers
5☆ service from start to finish. I'm new to scuba so buying a deysuit for the first time is a big investment coupled with everything else you have to buy. These guys no there stuff and the home fitting service was amazing. The whole experience of getting into a drysuit…
5☆ service from start to finish. I'm new to scuba so buying a deysuit for the first time is a big investment coupled with everything else you have to buy. These guys no there stuff and the home fitting service was amazing. The whole experience of getting into a drysuit that was tailored and fitted for me was so easy. They sent out suits to try and all of the deliveries and collections were seamless. The delivery date for the completed suit was bang on and the actual suit is fantastic. I can not recommend OThree enough for quality, service and experience. Thank you so much I'll be back for a wetsuit soon. I have the Port 10 with Kubi gloves and dived it for the first time last week, I'm so impressed. Thankyou
Absolutely first class customer service and tailoring of my drysuit. Before, my buddies struggled to zip me up. Contacted O’Three, really got to grips on where I needed the suit tailoring through sending photos of me in it. Fully briefed on the options and costs. Went ahead and returned in…
Absolutely first class customer service and tailoring of my drysuit. Before, my buddies struggled to zip me up. Contacted O’Three, really got to grips on where I needed the suit tailoring through sending photos of me in it. Fully briefed on the options and costs. Went ahead and returned in good time. What a difference! Easy to zip me in, fits great everywhere. Many thanks to the team 🤿🤿🤿
I was very impressed with the unbelievably outstanding service & the product – from start to finish. The thorough 5.5 page sizing guide/ test suit/ video call/ proactive user friendly parcel handling approach/ the welcome pack/ the personalisation/ the optional extras/ the spares & various solutions & of course the…
I was very impressed with the unbelievably outstanding service & the product – from start to finish.
The thorough 5.5 page sizing guide/ test suit/ video call/ proactive user friendly parcel handling approach/ the welcome pack/ the personalisation/ the optional extras/ the spares & various solutions & of course the suit itself – all top notch. Highly recommend.
A drysuit is a long-term investment, and ongoing support is just as important as the initial purchase. With expert servicing, repairs and advice available throughout the life of your suit, you can dive with confidence knowing help is on hand whenever you need it.
Expert servicing to maintain performance and extend suit life
UK-based workshop for convenient aftercare and maintenance
Access to genuine replacement parts and accessories
Find out more O’Three aftercare
Dedicated repair service for wear, damage and component replacement. Learn about our long-term ownership support to help protect your investment for years to come.
Just received my suit back from O’Three, after having a health check and new neck and wrist seals. The service was quicker that I expected and they have done a superb job, it looks like a brand new suit. Great value for money.
Drysuit innovation & deep technical expertise 
with unsurpassed customer experience 
