10 Best Triathlon Wetsuits 2025 in the United States

The O'Neill Men's Reactor-2 3/2mm Back Zip Full Wetsuit is a strong contender for beginners and value-conscious triathletes. Made from ultra-stretch neoprene, it boasts remarkable flexibility and comfort, essential for various water activities like surfing, diving, or paddle sports. The 3mm thickness provides a good balance of warmth and mobility, making it suitable for moderate temperatures. The fit is designed to accommodate larger frames, ideal for those with a chest size of 40-44 inches and a height around 6 feet, although it’s always best to try it on for personal comfort.

The back-zip system is a user-friendly feature, making the wetsuit easy to put on and take off, with a water-resistant closure to minimize water entry. Buoyancy isn't specifically highlighted, but the 3/2mm neoprene should provide adequate lift in the water. The seamless paddle zones are a notable strength, reducing chafing and allowing for greater arm movement. Additionally, the wind-resistant smoothskin offers extra insulation against the cold, increasing comfort during use.

One potential downside could be the seams, which, though minimal, might not be as durable as fully sealed or taped seams found in higher-end wetsuits. Also, while the back zipper is convenient, front-zip alternatives can sometimes provide a better seal and flexibility around the torso. This wetsuit is best suited for entry-level users and those engaging in a variety of water sports, looking for a reliable and comfortable wetsuit at a reasonable price.

The Synergy Triathlon Wetsuit 3/2mm - Volution Full Sleeve offers several advantages for triathletes of all levels. Made from hydrodynamic neoprene with silicone coating, this wetsuit combines flexibility and buoyancy, which is essential for efficient swimming. The 3mm core buoyancy panel helps users float higher, while the 2mm material on the lower legs and back enhances flexibility. This design contributes to faster movement through the water and energy conservation, vital for long-distance swimming events like triathlons.

The wetsuit is also Ironman and USAT approved, indicating it meets high standards for competitive swimming. It features a soft, smooth neck that minimizes irritation and an anti-corrosion YKK zipper, reducing drag and ensuring durability. A variety of sizes are available to ensure a good fit, which is critical for comfort and performance. However, the wetsuit’s 1.54-kilogram weight might be a bit heavy for some users, and the 1-year warranty is only applicable to the original owner, which could be limiting.

This wetsuit seems well-suited for both amateurs and seasoned triathletes looking for a reliable and performance-enhancing suit. Its balance of flexibility, buoyancy, and high-quality materials makes it a strong contender in the triathlon wetsuit market.

The Synergy Triathlon Wetsuit 3/2mm Volution Sleeveless Quick John is designed with triathletes of all levels in mind, including Ironman competitors, meaning it meets strict performance standards. Made from neoprene with a 3mm thick buoyancy panel in the core and 2mm thickness on the legs and back, it strikes a good balance between floatation and flexibility. The sleeveless design allows for a full range of arm movement, which enhances swimming speed and comfort, although it provides less warmth and protection compared to full sleeves.

Its hydrodynamic silicone-coated surface helps reduce drag in the water, making your swim more efficient. The YKK anti-corrosion zipper ensures durability and less resistance during your swim, while the soft, smoothskin neck area adds comfort by minimizing irritation. Fit options are broad, helping athletes find the right size for a snug fit, which is key for both performance and warmth.

The sleeveless style might not be ideal for colder water conditions, and while the wetsuit is well-regarded, it is not a top bestseller. This wetsuit offers solid buoyancy, flexibility, and comfort, making it a strong choice if you want a lightweight, performance-oriented suit for open water triathlon swims, especially in moderate temperatures.