Triathlon equipment : the basics
The first piece of equipment which will make your first triathlon a lot easier is the famous trisuit! This cross between cycling shorts and wrestling costume will enable you to do all three sports in only one outfit! The three sports have different clothing constraints: swimming requires a fabric with a good water penetration coefficient and also quick-drying properties! Cycling requires some padding at the glutes, so you can knock off those kilometres. Finally, running requires a high degree of freedom of movement. A tri-suit gives you all of this at the same time! It also saves you from needless changes during the transitions.
Another basic is the bike. Don't worry if you don't have the latest time-trial bike with cutting edge aerodynamics. As long as you have some kind of bike, there are no regulatory restrictions. You can use a city bike or mountain bike - both are fine! No need to beg your bank for an overdraft and splash out on the latest world championship winning machine! Borrow someone's bike (provided it is the right size) or dust off your old machine in the garage. The important thing is for it to have two wheels and be driven by your muscles! However, for those gluttons for punishment preparing for a long-distance event, I would recommend a road bike, because racing at 90 km on a mountain bike might mean losing a lot of time, or even missing the cut-off time.
The final essential tool for your race are running shoes, and I did say "running". I would definitely advise against those trendy trainers in your wardrobe. After a swim and a cycle, running is tough enough psychologically without making things even more difficult, so invest in a pair of running shoes suitable for the specific event you are training for.