Zone3

Zone3 has quickly become one of the most respected names in triathlon and open‑water swimming across the United States. What started as a small project by elite triathlete James Lock at Loughborough University has grown into a global performance brand trusted by athletes at every level. Lock originally designed his own wetsuits to gain an edge in competition, selling early versions at local races to help fund his international travel. That same athlete‑driven mindset still defines Zone3 today.

Since officially launching its first wetsuit line in 2009, Zone3 has expanded into a full performance collection built for speed, comfort, and efficiency in the water. Their wetsuits are engineered for triathletes, open‑water swimmers, and SwimRun athletes who demand high‑quality gear that performs in real race conditions.

At ProSwimwear, we carry one of the most comprehensive selections of Zone3 wetsuits available. Whether you’re a beginner preparing for your first sprint triathlon or an experienced athlete chasing a new PR, you’ll find the right suit here — from entry‑level models to top‑tier options like the award‑winning Zone3 Vanquish.

We also stock a wide range of Zone3 triathlon accessories, including neoprene caps, gloves, timing chip straps, and buoyancy aids designed for colder water and long‑distance training. Zone3’s innovation extends beyond wetsuits, with dedicated SwimRun suits and durable training swimwear that pairs perfectly with Zone3 goggles, caps, and training gear.

If you’re gearing up for your next triathlon, open‑water race, or SwimRun event, Zone3 delivers athlete‑tested performance trusted by competitors across the U.S.