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 Sleeveless Long John is designed for triathletes of all levels, from beginners to seasoned competitors. Made from hydrodynamic neoprene with a silicone coating, this wetsuit combines durability and performance. The 3mm core buoyancy panel and 2mm thickness on the legs and back offer a good balance of buoyancy and flexibility, helping you float higher and move faster in the water, which can save energy during long swims.

The sleeveless design ensures a full range of motion, critical for efficient swimming strokes, while the super soft low neck feels comfortable and reduces chafing around the neck area. The YKK zipper is high-quality and designed to resist corrosion, making it easier to use and reducing drag through the water. The seams are well-constructed to prevent water entry and ensure longevity.

This wetsuit is also Ironman and USAT approved, adding to its credibility and appeal for serious triathletes. Some users might find the sleeveless design less suitable for colder water conditions. With a 1-year warranty, it's a reliable choice, though it requires product registration and is only applicable to the original owner. The wetsuit's inclusion in the top rankings for triathlon skinsuits and wetsuits further supports its reputation as a solid choice for triathletes.