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 Dark Lightning Full Body Wetsuit is made from 3/2mm premium stretch neoprene, providing a good balance of warmth and flexibility for water temperatures around 58–68°F. This thickness is suitable for mild to cool conditions, making it a solid choice for recreational swimmers, surfers, and triathletes training in those environments. Its high-elasticity neoprene helps maintain unrestricted movement, an important feature for swimming and paddling activities.

The fit has been improved based on customer feedback, and the availability of an updated size chart helps users find a comfortable match. The wetsuit features a classic back zipper with an extended leash, making it easy to put on and take off, even for beginners. However, this back zipper design might allow some water entry compared to front or chest zippers commonly preferred in higher-end triathlon wetsuits for reduced drag and better sealing. The seams appear standard, offering decent durability but may not be as smooth or glued for maximum water resistance and comfort seen in more expensive models. The plain black design keeps it versatile and understated, appealing to those who want simplicity over flashy colors.

This wetsuit offers good buoyancy and warmth for its thickness but might not be ideal for very cold water or serious competitive triathletes seeking specialized features like ultra-flexible panels or advanced seam technology. It fits well for recreational and entry-level triathlon or multisport users seeking an affordable and comfortable option in moderate water temperatures.

The Orca Men's Athlex Float Wetsuit is designed specifically for triathlon swimmers looking for a balance between buoyancy, flexibility, and comfort. Made from neoprene, it offers good thermal insulation which is enhanced by the Hydrolite inner lining that seals the neck area, helping to keep water out and reduce chafing. This also improves hydrodynamics, making swimming more efficient. The wetsuit features a durable YKK 10 zipper known for its strength and water resistance, so you can expect it to last through many races and training sessions. The fit appears to be snug, especially around the neck, thanks to the Ultimate Seal Collar which helps prevent water from entering, contributing to better warmth and buoyancy.

The long sleeves and quality seams further support durability and comfort in the water. The materials and sealing technologies suggest it’s designed to keep you warm without sacrificing flexibility. This wetsuit suits triathletes who want reliable buoyancy and a comfortable fit while valuing a good seal and durability in their triathlon wetsuit.