1. Open water swimsuit / wetsuit
In purely practical terms, open water swimming does not really require any equipment other than that used in a swimming pool. However, and because the conditions are not the same, it is often useful to surround yourself with the proper equipment to be both comfortable and effective during your open water sessions. This applies particularly when deciding whether to swim in a swimsuit or in a neoprene open water wetsuit. Let's weigh up the pros and con