10 Best Triathlon Wetsuits 2025 in the United States

The Synergy Triathlon Wetsuit 3/2mm is designed for triathletes of all levels, including Ironman competitors, making it a solid option if you want a reliable, race-approved wetsuit. Made from neoprene with a smoothskin silicone-coated surface, it offers good buoyancy thanks to the thicker 3mm panels on the core and slightly thinner 2mm panels on the legs and back. This thickness combination helps you float better and swim faster while maintaining flexibility, which is important for comfortable movement during your race. The full sleeve design and wide range of sizes ensure a snug fit, which is crucial to prevent water from seeping in and slowing you down.

The wetsuit features a high-quality YKK zipper inside to reduce drag and improve durability, plus a soft neck that feels comfortable and avoids irritation. It is a reasonably lightweight wetsuit at about 1.38 kilograms, which helps reduce fatigue over long swims. The one-year warranty adds peace of mind for your investment.

For most triathletes seeking a flexible, buoyant wetsuit that balances performance and comfort without breaking the bank, the Synergy Volution Full Sleeve wetsuit presents a dependable choice.

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 is designed to meet the needs of triathletes at all levels, including Ironman competitors, as it is USAT approved. Made from hydrodynamic neoprene with a silicone-coated surface, it offers a good balance of buoyancy and flexibility. The 3mm thickness around the core provides extra buoyancy to help you float higher and swim more efficiently, while the 2mm neoprene on the legs and back keeps you flexible for easier movement.

Its full-sleeve design and smoothskin material on both sides reduce water resistance, making swimming feel smoother and less tiring. A standout feature is its high-quality YKK zipper that resists corrosion and is designed to minimize drag as you swim. The wetsuit fits a wide range of sizes, providing many women with a comfortable, snug fit—important for performance and warmth. The soft low neck adds comfort without feeling restrictive.

Some users might find the wetsuit a bit warm in milder water temperatures due to the thickness. It carries a 1-year warranty, which helps protect against early defects. This wetsuit is a solid choice for those seeking a reliable option that supports buoyancy and flexibility for triathlon open water swimming, especially in long races, balancing comfort, performance, and durability.