10 Best Triathlon Wetsuits 2026 in the United States

The Synergy Endorphin Men's Full Sleeve Triathlon Wetsuit is designed for triathletes of all levels, offering a great balance of performance and comfort. Made from high-quality Yamamoto #39 neoprene with a silicone coating, it provides excellent flexibility—claimed to stretch up to 680%, which helps with free arm movement during swimming. The wetsuit’s thickness varies from 5mm in the core for maximum buoyancy (helping you float higher and swim more efficiently) to thinner 2mm panels on the arms and shoulders for better mobility. This makes it suitable for colder water while still allowing a good range of motion. The fit is enhanced by a wide size range, aimed at securing a snug but comfortable feel, which is crucial in keeping water entry minimal and improving swim speed.

The YKK internal zipper is corrosion-resistant and designed to reduce drag, which is a nice touch for serious swimmers. The soft, low neck design adds comfort without restricting movement. Since it’s a 5mm thick wetsuit, it might feel a bit bulkier or warmer than thinner options if used in temperate or warm water. While it has many features for flexibility and buoyancy, some users might find pricing or availability a consideration as it’s a specialized product. The 2-year warranty provides reassurance for durability. This wetsuit is ideal for triathletes seeking a reliable, high-buoyancy wetsuit that balances warmth, flexibility, and speed, especially in colder open-water conditions.

The Zoot Men’s Kona 2.0 wetsuit is designed as a versatile full-body suit suitable for triathlons, swimming, diving, and other water sports. Made from 2mm thick Yamamoto neoprene, it strikes a good balance between warmth and flexibility, which is important for comfortable movement during swimming. The suit includes AQUAlift buoyancy technology, which helps improve your body position in the water, making swimming more efficient. Its GLIDEflex chest panels expand with your breathing, offering better comfort and breathability than many traditional wetsuits. This feature is especially helpful during intense swim sessions where easy breathing is crucial.

The wetsuit’s long sleeves and 100% nylon interior lining allow for easy entry and exit, which is convenient for quick transitions in triathlons. The zipper is a dorsalflex type, positioned on the back, designed to reduce drag and enhance swimming movement. While the 2mm thickness offers decent warmth in mild to moderate conditions, it might be less ideal in colder waters where thicker wetsuits are preferred. Also, the small size may not fit everyone well, and since fit is critical for both comfort and performance, trying it on before purchase is advisable if possible.

This wetsuit serves as a solid choice for triathletes seeking a flexible, breathable, and buoyant suit that supports efficient swimming without sacrificing comfort.

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.