- Directions to the event: I cannot tell you how many times I tried to find my way to a triathlon only to get there minutes after the start. Take directions.
- Backpack (to hold all your clothes and accessories)
- Warmup/prerace outfit: Most triathlons are held in the morning, so take loose, warm clothing in which to mill about. A light sweat suit or warmup suit will do the job. Or you may want to wear bike tights, which warm your muscles without adding bulk to your legs, so you can even wear them when warming up on your bike.
- Race number (preattached to your race outfit): Pin your race number onto the front of the shirt you plan to wear for the bike and run legs of the race. If you're a man who prefers to do the race shirtless, you can purchase a race number belt for about £5. When using a belt, display your race number on your back during the bike leg, and then pull it around to your front for the run.
- Permanent black marker (to mark yourself for the race)
- Wet suit (if permitted)
- Goggles: Also, bring your antifog to prepare your goggles before the race.
- Swim cap: You are required to wear the swim cap provided in your race packet for the swim leg of the event.
- Bike helmet
- Bike shoes
- Race outfit (whatever you plan to wear for the swim, bike and run portions of the race): Some participants wear their swimsuits for the entire race, whereas others prefer to pull on bike shorts and a shirt over their suits for the bike and run portions.
- Bike gloves (optional, but helpful for longer events such an Ironman event)
- Tool kit/spare tire: If you get a flat tyre during your warmup or the race itself, don't let that end your day. Be prepared to repair or replace the tire. Place the tool kit complete with spare tube and tyre levers under the seat of your bike. You also need a pump with you; most are designed to attach to the bike's frame.
- Running shoes
- Running/bike socks
- Hat (optional)
- Sunscreen (optional)
- Food (energy bars/energy gels to give you a boost if your reserves run low during the race)
- Water bottles
- Postrace outfit: You may be modest and prefer not to strut around in your swimsuit or bike shorts once the race is over. If that's the case, bring a warmup suit to pull over your race kit or simply use the same one you wore before the race began.
- Towel: This serves as your home base, to delineate your transition area and to clean any stones or debris from your feet between sports. A nice, big fluffy towel is a relaxing thing to have in the hectic pace of the race. A simple bath towel works best. You may want to use a brightly colored one so that you can find it among the sea of towels.