O'NEILL Men's Reactor-2 3/2mm Back-Zip Full Wetsuit - Black/Ocean, Ultraflex Stretch & Wind Panels

The O'NEILL Men's Reactor-2 3/2mm Back Zip Full Wetsuit is a stretch-driven, durable entry-level suit designed to keep you comfortable and mobile across a wide range of water sports.

Built to deliver dependable warmth and freedom of movement without a premium price tag, the Reactor-2 blends Ultraflex neoprene, flatlock stitching, and a back-zip entry for a reliable everyday wetsuit. Its balanced mix of flexibility and insulation makes it a versatile option for surfers, paddlers, snorkelers, and seasonal swimmers who want proven O'NEILL construction and a modern fit.

How does the Ultraflex neoprene improve performance on the water?

Ultraflex neoprene is designed to move with your body rather than restrict it. That enhanced elasticity reduces resistance during paddling and strokes, so you can perform with fewer constraints and more natural range of motion.

• High-stretch neoprene for unrestricted movement
• Softer feel that reduces chafing and fatigue
• Makes popping up and paddling easier in surfing

Will this suit keep me warm during typical seasonal sessions?

The Reactor-2’s 3/2mm thickness balances thermal protection and flexibility for cool-to-warm conditions. Wind-resistant smoothskin panels add extra insulation where exposure is greatest, helping retain warmth without bulk.

• 3mm torso panels for core warmth
• 2mm limbs for mobility and quick drying
• Smoothskin wind panels for added protection on colder days

How easy is it to get in and out of the suit?

The back-zip system is built for quick entry and exit while minimizing water flushing. A water-resistant closure helps reduce cold water ingress so you spend less time adjusting and more time enjoying the activity.

• Simple back-zip opening for fast donning and doffing
• Zip placement designed for comfort while paddling or lying prone
• Water-resistant closure reduces internal cooling

What design details improve comfort and durability during regular use?

Flatlock-stitched seams provide strong, low-profile construction that holds up in repetitive movement and extended use. Seamless paddle zones reduce seam count across the shoulders and back for a smoother, more comfortable feel when performing overhead motions.

• Flatlock stitching minimizes irritation and increases seam longevity
• Seamless paddle zones allow freer shoulder rotation
• Reinforced panels in high-wear areas for extended life

Who this wetsuit is for: The O'NEILL Reactor-2 is ideal for beginners who want dependable gear without overspending, recreational surfers and paddlers who need mobility and comfort, and seasonal water enthusiasts seeking a versatile full suit for lake, ocean, and beach use. Choose this model if you want a reliable 3/2mm option that emphasizes stretch, practical warmth, and user-friendly features from a trusted brand.