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Racewear Advice

How Do You Measure for a Made-to-Measure Race Suit?

The 19 measurements we use for a made-to-measure suit, how to take them, and the mistakes to avoid.

Arlie Dobson racing kart number 36 at Buckmore Park in his pink, blue and white custom kart suit by Custom Racewear

A made-to-measure suit is only as good as the measurements behind it. It takes about ten minutes with someone holding the tape. Here's how to get them right first time.

What do you need before you start?

  • A soft tape measure in centimetres.
  • Someone to help: measuring yourself bends your posture and changes the numbers.
  • The driver in their race underwear, plus their rib protector if they race in one.

Which measurements do we use?

We use 19 measurements, lettered A to S, plus height, weight and age. They cover the shoulders and arms (shoulder, sleeve length, inside sleeve, neck, biceps, forearm), the body (chest, ribs, waist, hip), the lengths that make a one-piece suit fit (torso length, total crotch, torso front, total length) and the legs (leg, inside leg, thigh, thigh 5 cm lower, calf).

When you order in our online designer, each box shows a picture of exactly where the tape goes. Type them in centimetres, with weight in kilograms.

How do you take the long measurements?

Total crotch is the one people find hardest. It runs from the bony bump at the base of the neck, down the back, between the legs and up to the belly button. Keep the tape snug, not tight, and have the driver stand naturally.

Sleeve length is taken with the arm bent at about 120 degrees, as it would be on the steering wheel, from the shoulder point to the wrist.

What are the common mistakes?

  • Measuring over everyday clothes instead of race underwear.
  • Forgetting the rib protector, so the ribs measurement comes out small.
  • Pulling the tape tight. It should sit flat without digging in.
  • Measuring a growing junior weeks before ordering.

What if I don't have the measurements yet?

You can still order. Choose "Send after I pay" and we'll email you a private link to send them when you're ready. We start making the suit once they're in.

Can I upload the paper form instead?

Yes. Download the Custom Fit Size Service form, fill it in, and upload a PDF or a clear photo when you order.

What if something looks wrong?

The designer flags numbers that look out of range or don't add up, such as an inside leg longer than the leg. If you're unsure, ask us to call you before you order.

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