O'Neill Reactor-2 2mm Back Zip Short Sleeve Spring Wetsuit

In this review the O'Neill Reactor-2 2mm back zip short sleeve spring wetsuit is evaluated as an entry-level, value-driven suit aimed at paddle sports and warm-water surfers who need light insulation without sacrificing mobility. The biggest reason to buy is its combination of ultra stretch neoprene and a back zip that makes getting in and out easy while still retaining warmth for cooler mornings or 60' water conditions. It is a practical choice for surfers, snorkelers, and paddlers who want comfort and durability without a premium price tag.

Key Features

• Neoprene Rubber Construction: Provides lightweight thermal protection while remaining flexible for active water sports.
• Backzip System: Offers simple entry and exit with a water-resistant closure that reduces flushing while on the water.
• Ultra Stretch Neoprene: Soft premium material improves range of motion and comfort during paddling and surfing.
• Seamless Paddle Zones: Minimal seam placement reduces chafing and increases shoulder mobility for long paddle sessions.
• Wind-Resistant Smoothskin: Extra insulation on exposed panels helps block wind chill on cool mornings or breezy conditions.
• Value-Focused Design: Engineered to balance durability and performance for those seeking an affordable wetsuit option.

Who It's For

The Reactor-2 is best for beginners and budget-conscious water enthusiasts who participate in surfing, paddleboarding, kayaking, or snorkeling in mild to moderately cool water. It suits people who prioritize comfort and ease of use and who need a versatile shorty that performs well in summer and shoulder-season conditions.

Seasoned cold-water divers or those needing thick winter insulation should look elsewhere for suits with heavier neoprene and sealed seams. Also, paddlers who demand a customized fit for long-distance touring may prefer a higher-end model with glued seams or zippers designed for heavy daily use.

Pros & Cons

Pros

• Comfortable fit that reviewers say keeps them warm in cooler water while retaining mobility.
• Good value for money with durable materials and fresh styling for repeated use.
• Backzip design makes the suit easy to get on and off, convenient for casual sessions.
• Wind-resistant smoothskin adds useful insulation against chilly breezes.

Cons

• The back zipper receives mixed feedback; some users find it stiff or harder to operate than expected.
• Sizing opinions vary, so trying on or confirming local dealer sizing is recommended before purchase.

Specifications

Brand	O'NEILL
Model	Reactor-2 2mm Back Zip Short Sleeve
Material	Neoprene rubber with ultra stretch neoprene panels
Closure	Back zip with water-resistant closure
Thickness	2mm
Intended Use	Surfing, paddle sports, diving, snorkeling, lake and beach activities
Size Example	XXX-Large: chest 48.43'-51.18', waist 38.98'-44.09', height 6'0'-6'3'

Our Verdict

The O'Neill Reactor-2 is a sensible buy for entry-level surfers, paddleboarders, and snorkelers who need a lightweight, flexible suit that still provides warmth and wind protection. It delivers strong value through comfortable stretch neoprene and practical features like seamless paddle zones and a back zip, though buyers should confirm fit and be aware zipper feel can vary.

Frequently Asked Questions

Is this suit warm enough for cool water?
The 2mm construction and wind-resistant smoothskin provide light insulation suitable for cool to mild conditions and water around 60' when active.

How easy is it to get on and off?
The back zip system is designed for easy entry and exit, though some users report the zipper can be stiff; using a dealer to check fit helps.

Who should avoid this suit?
Cold-water divers and those needing thick winter protection or fully sealed seams should choose a heavier, purpose-built cold-water wetsuit instead.