10 Best Triathlon Wetsuits 2025 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 Synergy Triathlon Wetsuit Women's Endorphin Full Sleeve is designed for triathletes of all levels, offering a range of sizes to ensure an optimal fit. The wetsuit uses Yamamoto #39 hydrodynamic neoprene with SCS silicone coating, contributing to superior performance in the water. Its Astro Thermal liner adds warmth, making it suitable for colder temperatures.

The wetsuit features a 5mm thick core buoyancy panel, 3mm lower legs and back, and 2mm arms and shoulders, providing maximum buoyancy which is particularly beneficial in cold water, helping you float higher and move faster, thus saving energy during a triathlon. The flexibility of the suit is impressive, offering 680 percent stretch, which allows for a full range of motion without restriction. The YKK anti-corrode internal zipper helps reduce drag, further enhancing your swimming efficiency.

Additionally, the soft low neck with smoothskin ensures comfort, preventing chafing or discomfort around the neck area. However, the wetsuit's thickness may be a bit much for warmer waters, and its high buoyancy might not be as beneficial for more experienced swimmers who prefer less buoyancy. The 2-year warranty provides peace of mind, though it requires product registration and only applies to the original owner. This wetsuit is well-regarded and offers excellent features tailored for triathletes, particularly those competing in cold water events.

The Zone3 Women's Advance Wetsuit is made from neoprene with a thickness of 1.5 millimeters, which is relatively thin for triathlon wetsuits. This thickness enhances flexibility, allowing for easier arm movement and increased comfort during swimming. The wetsuit features a long sleeve design and a full zipper closure that contribute to warmth and make it easy to put on and take off.

While the thinner neoprene improves flexibility, it may provide slightly less buoyancy compared to thicker wetsuits, potentially affecting how high you float in the water. Designed specifically for women, the wetsuit aims to offer a snug fit without restricting movement, which helps reduce drag and improves swim efficiency. Zone3's reputation for quality craftsmanship suggests the seams are durable and watertight.

The combination of flexibility and a close fit makes this wetsuit a suitable option for beginner to intermediate triathletes who prioritize comfort and ease of movement. For those swimming in colder waters or seeking maximum buoyancy to enhance swim times, a thicker wetsuit or one with additional buoyancy features might be preferable. Its lightweight design also allows for easy packing, making it convenient for travel.