A triathlon wetsuit is a particularly impressive piece of kit because it has to meet the specific requirements of triathletes for competitive conditions as well as training, allowing them to make the most of their physical capabilities and allow them to transition smoothly once the swimming stage is complete. A triathlon wet suit needs to adhere to rules about the thickness of the rubber, because the greater the layer the more buoyant the suit and the simpler it is for a swimmer to stay afloat. This needs to be balanced against the reduction in drag that a solid suit will provide, which in turn can help to aid your swimming technique and get you to the front of the pack.
The wetsuits triathlon participants buy need to be easy to remove. This is because once you have emerged from the water you will want to have a perfect transition and relatively free movement so that you can whip off the triathlon wetsuit in a few seconds and get on with the race. The final thing that the wetsuits triathlon competitors choose should offer is warmth, because certain races will see you swimming in water that could adversely affect your performance and wellbeing due to its temperature. Again there are rules which you must follow and sometimes the water will be warm enough to negate the need for wet suits, so you will need to prepare for all eventualities and choose a model which suits your body type and exacting requirements.