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our One-Stop Shop for Diving Gear and LSD Merchandise - Free delivery on all orders over £50

LSD Open Day
Saturday 18th October 9am-4pm
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Welcome to the LSD Dive Shop

Your One-Stop Shop for Diving Gear and LSD Merchandise - Free delivery on all orders over £60

O’Three 65 Semi-Dry Diving Wetsuit

£349.95 inc. VAT

The O’Three 65 Semi-Dry Diving Wetsuit is a premium 6/5mm unisex suit designed for warmth, comfort, and durability. Built with multi-density neoprene, advanced fabrics, and watertight construction, it’s one of the best semi-dry wetsuits for UK and overseas diving.

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The O’Three 65 Semi-Dry Diving Wetsuit represents the very best of O’Three’s expertise in neoprene design and wetsuit technology. Made with three densities of dive-grade neoprene, it offers excellent flexibility, minimal compression, and maximum warmth, ensuring comfort across a wide range of diving conditions.

Internally, the torso is lined with Thermal Plush for added insulation and faster drying times, while strategically placed stretch panels enhance mobility. Externally, durable 210D fabric reinforces high-wear areas like the seat and knees, with PU laminate for extra protection. Triple-glued and blind-stitched seams create a watertight barrier, while the storm guard and YKK HD back zip further prevent water ingress.

The unisex design features O’Three’s ergonomic tailoring for a precise fit, plus seals at the wrists, neck, and zip for added thermal protection. This wetsuit has been proven in record-breaking dives and is trusted for its performance, durability, and comfort.

Key Features

  • 6/5mm Dive-Grade Neoprene – Three densities for warmth, flexibility, and durability

  • Thermal Plush Torso Lining – Extra insulation and quicker drying

  • Triple-Glued & Blind-Stitched Seams – Watertight and durable

  • 210D Reinforcement Panels – Tough protection on seat, legs, and knees

  • Stretch Panels – Flexible neoprene in key movement areas

  • Floating Collar & Glide Skin Seals – Comfortable, secure seals at neck and wrists

  • YKK HD Back Zip with Storm Guard – Reliable, watertight closure

  • Unisex Fit – Ergonomic tailoring for comfort and performance

Benefits

  • Exceptional warmth for UK and overseas diving

  • Flexible and comfortable without sacrificing durability

  • Reinforced in high-wear areas for long-lasting performance

  • Watertight seams and seals reduce flushing and heat loss

  • Trusted by record-breaking divers for performance in extreme conditions

Ideal For

    • UK divers in cooler waters (14–18°C) from early summer to mid-autumn

    • Divers heading abroad to the Red Sea, Mediterranean, or similar waters in winter

    • Recreational and advanced divers seeking a premium semi-dry suit

    • Anyone wanting maximum warmth, comfort, and durability in a wetsuit

Unisex Size Guide

Mens Height Chest Waist Hip
Small 5’4″ – 5’6″
162 – 167cm
34″ – 36″
86 – 91cm
27″ – 29″
69 – 74cm
32″ – 34″
81 – 86cm
Medium 5’8″ – 5’10″
172 – 177cm
38″ – 40″
97 – 101cm
31″ – 33″
79 – 84cm
36″ – 38″
91 – 97cm
Medium Tall 5’10″ – 6’0″
177 – 182cm
38″ – 40″
97 – 101cm
31″ – 33″
79 – 84cm
36″ – 38″
91 – 97cm
Medium Large 5’10″ – 6’0″
177 – 182cm
40″ – 42″
101 – 107cm
33″ – 35″
84 – 89cm
38″ – 40″
97 – 101cm
Large 6’0″ – 6’2″
182 – 187cm
42″ – 44″
107 – 112cm
35″ – 37″
89 – 94cm
40″ – 42″
101 – 107cm
Extra Large 6’2″ – 6’4″
187 – 193cm
44″ – 46″
112 – 117cm
37″ – 39″
94-99cm
42″ – 44″
107 – 112cm
2XL 6’3″ – 6’5″
189 – 196cm
46″ – 48″
117 – 122cm
39″ – 41″
99-104cm
44″ – 46″
112 – 117cm
3XL 6’4″ – 6’6″
194 – 198cm
48″ – 50″
122 – 127cm
41″ – 43″
104-109cm
46″ – 48″
117 – 122cm
SIZE

S, M, MT, ML, L, XL, 2XL, 3XL

Why Shop with Us?

Expertly Curated Gear: Our selection is hand-picked by experienced divers who know exactly what you need for safe, comfortable, and enjoyable dives.
Quality Brands: We stock top brands known for their reliability and performance, ensuring you get the best equipment for your diving needs.
Exclusive LSD Merchandise: From stylish apparel to practical accessories, show off your love for diving with our exclusive LSD-branded gear.
In-Store and Online Shopping: Visit us in-store or conveniently shop online. All products are available for click-and-collect or delivery straight to your door.
Advice from Professionals: Not sure what you need? Our expert team is on hand to guide you through product selections, ensuring you find the right fit for your diving style.

Shop Our Range:

Diving Equipment: Dive Computers, Regulators, BCDs
Masks, Fins, and Snorkels
Wetsuits, Drysuits, and Thermal Layers
Accessories: Dive Lights, Knives, and Safety Gear, Bags, Gloves, Hoods, and more
LSD Merchandise: T-Shirts, Hoodies, and Caps
Water Bottles, Towels, and Other Branded Items
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