Running is one of the least expensive events at the triathlon. You do not need any fancy equipment to run and the investment you make can see you through as many races as you want.As far as running is concerned, clothing is not given its due respect because participants feel that anything will do. But, since the sport is about speed, there are some things to keep in mind while choosing running clothing.When you are training, running clothing need not be anything fancy. Wear clothes that you are comfortable in. Clothes you would wear for a regular workout in the gym would suffice.A special note for women: Good, supportive bras are a must. These bras should offer just the right kind of support without being restrictive. Some suits have inbuilt support. The thumb rule when it comes to bras is to change them after 70-75 washes as these tend to become loose and unsupportive at that stage.As far as running clothing is concerned, less is more. Even if you are in a relatively cool climate, remember that running can warm up the body considerably. So, a few minutes into the race and you could well feel 15 degrees warmer, or more. At that point, clothing can become restrictive and stuffy. Light weight, breathable tees and shorts are all that you need for running.The one thing you need for running is a good pair of shoes. In this case, the costliest brand is not always the best and you do not need to invest money in top brands. It is more important to buy shoes that are designed well, fit snugly and can be fastened quickly. According to some experts, running shoes must be changed the moment the knees begin to feel any kind of pressure or pain. By doing this, you will be protecting your feet from pain.Some athletes like to use heart monitors during training sessions as these provide information on the level of exertion. For instance, on days when you feel that you are not training at your optimal level, you can evaluate the same using the heart monitor. However, heart monitors are hard to get used to and many people feel that they are a waste of money and energy.Along with running clothing, accessories like belts, carriers and hydration equipment are also needed by runners. Many runners like to use bottles that are aerodynamic in design as they do not want anything to come between them and a potential win. Running hats are also used by runners, particularly when it is hot and sunny. Hats must sit snugly on the hear, must offer shade without hindering vision and must absorb sweat easily.