2026 O'Neill Reactor 4/3mm GBS Steamer Wetsuit - Black

2026 O'Neill Reactor 4/3mm GBS Steamer | Maximum Warmth Meets Unbeatable Value

The O'Neill Reactor is the ultimate "no excuses" suit, designed to keep you in the lineup through the coldest Victorian winters without breaking the bank. Engineered for the surfer who wants to transition from the morning chill to a high-energy session, this steamer balances rugged durability with the freedom of movement needed for deep paddles and sharp turns. Experience the reliable warmth and iconic O'Neill fit that lets you focus entirely on the next set rolling through.

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Key Technical Features

• UltraFlex DS Neoprene: High-performance, super-stretch neoprene that allows for maximum mobility in the arms and shoulders, ensuring your paddle power isn't restricted.

• Sealed GBS & Stress Point Taped Seams: Glued and Blindstitched construction keeps the water out and the heat in, while internal taping at critical junctions ensures this suit survives seasons of heavy use.

• Seamless Paddle Zones: An ergonomic design that eliminates chafing under the arms, providing a comfortable, rash-free experience during long hauls out to the back.

• 4/3mm Thickness: The gold standard for cold water versatility, providing thick insulation through the core while maintaining flexibility where you need it most.

• Back Zip Entry System: A classic, easy-entry design that makes getting changed in a windy car park a breeze, featuring a durable, water-resistant closure.

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Why You'll Love It

The 2026 O'Neill Reactor 4/3mm is the perfect daily driver for surfers who demand authentic performance without the premium price tag. It’s a workhorse of a steamer—tough enough to handle the elements, yet flexible enough to keep your surfing feeling fluid. Whether you’re a local legend or just starting your journey, this suit offers the technical "drive" and heat retention required to conquer the southern swells.

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Buy Now at Welcome Boardstore for the best in authentic Surf gear and apparel. For more Surf tips, news, and brand deep-dives, be sure to check out The Welcome Journal.

Order by 12pm Mon-Fri to receive same-day DISPATCH

Order after 2pm and receive next business day DISPATCH.

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Free returns are granted if you receive an item that is faulty, or is not as described.

We do not cover return fees if you change your mind or order incorrectly.

We only accept returns to us within 14 days of date of receiving, in the condition that you received it and we will happily exchange it or issue a refund. *Conditions Apply.

PLEASE NOTE: Sale items are offered at significantly discounted prices so please choose carefully as we WILL NOT offer exchanges or returns on sale items.

Our full return policy can be found here

We want you to be happy with the product you buy, so all our products offer a 12-month repair and replacement warranty for factory defects or manufacturing errors.

All warranty claims and repairs must only be assessed by the manufacturer and/or manufacturer's representative and will be repaired, replaced, or credited at their discretion excluding any shipping fees.

A valid proof of purchase will be required for all warranty claims.

Contact us on support@welcomeboardstore.com.au or call 039781472 for more information.