The swim portion of any triathlon often represents the most challenging one, for most triathletes are bikers or runners who must learn to swim. Diving into ocean or lake water with countless bodies surrounding you, all splashing about while trying to find open space, can intimidate even the most seasoned swimmer. However, like in any other sport, if you have the proper equipment, managing the stress of competition becomes that much easier.

Originally intended to keep a triathlete's body warm in cold water—open water swims, unlike regulated pools, often have temperatures ranging from 63 to 74 degrees, the wetsuit has evolved into more than just temperature assistance.

Most swimmers appreciate that a wetsuit makes them more buoyant, especially in salt water. Therefore, they keep their hips higher, which allow the shoulders and head to remain in a good position. Also, with the buoyancy and improved form comes a faster, more "slippery" swim. In fact, the average wetsuit cuts 10 meters off every 100 meters, thus reducing the work rate the swimmer invests and the time he accumulates.

Although wetsuits can be expensive, with most quality ones running between $200 and $400, but if properly cared for the suit will last a lifetime. Selecting the best one for you is a matter of preference, with styles ranging from full and half suits to sleeveless and two-piece models.

Make sure you consider two key aspects when choosing a wetsuit. First, it must give you good range of motion, particularly in the shoulders. Second, it needs to be easy to get off, so be sure it has a long back zipper you can grab easily. The last thing you want is to come out of the water, tired from a long swim, and have to wrestle a suit off before jumping on your bike.

Overall, a wetsuit is a great investment that will enhance your swim tremendously. Take the time to find the best one for you, and care for it well; you'll get years of competitive enjoyment if you do.