How to Get the Perfect Fit in a Custom Racing Suit: A Complete Sizing Guide
Fit Is a Safety Issue, Not Just a Comfort One
A motorcycle racing suit that fits poorly isn't just uncomfortable — it's dangerous. Armor that shifts out of position, leather that bunches at the knees, or a back protector that rides up under braking can all compromise the protection the suit was designed to provide. In a slide, fractions of a second and millimetres of material placement matter.
This guide covers how a properly fitted racing suit should feel, how to troubleshoot common fit problems, and what to expect when ordering a made-to-measure suit.
How a Well-Fitted Racing Suit Should Feel
The benchmark is simple: a racing suit should feel snug in a riding position and comfortable in an upright position. If it feels perfect standing in a showroom, it's probably too loose on the bike.
In a Riding Position (Crouched Over the Bars)
- No pulling or restriction across the shoulders or upper back
- Sleeves reach the wrist without riding up
- Knee armor sits directly over the kneecap — not above or below
- The back protector stays centered on the spine without shifting
- The suit doesn't compress your chest or restrict breathing
Standing Upright
- Slight excess material at the knees and elbows — this is intentional and disappears in riding position
- Collar sits comfortably without choking
- Hump (if present) sits naturally between the shoulder blades
Key Measurements for a Made-to-Measure Suit
A custom suit is only as good as the measurements it's built from. Take these in your riding gear (base layer) with a helper for accuracy. Our full measurement guide walks through each one in detail: How to Measure for a Custom Motorcycle Suit.
| Measurement | Why It Matters |
|---|---|
| Chest | Determines overall suit size and chest armor placement |
| Waist | Affects suit closure and comfort under braking |
| Hips | Critical for 1-piece suits and hip armor positioning |
| Shoulder width | Determines shoulder armor placement and sleeve set |
| Sleeve length | Ensures elbow armor sits correctly over the joint |
| Torso length (front & back) | Prevents the suit riding up or down in riding position |
| Inseam | Determines knee armor placement relative to the joint |
| Thigh & calf circumference | Affects leg panel fit and freedom of movement |
Common Fit Problems and How to Troubleshoot Them
Shoulder Armor Sits Too High or Too Low
Cause: Incorrect shoulder width or sleeve length measurement.
Fix: Re-measure shoulder width from the edge of one shoulder to the other across the back. For a custom suit, this is a straightforward alteration.
Knee Armor Doesn't Align With the Kneecap
Cause: Incorrect inseam measurement or the suit is too long/short in the leg.
Fix: Measure inseam in riding boots, not barefoot. The riding position raises the knee, so the armor pocket needs to account for this. Most quality suits allow armor pocket adjustment.
Suit Pulls Across the Upper Back in Riding Position
Cause: Insufficient back length or shoulder width.
Fix: This is one of the most common fit issues and one of the most important to resolve — a suit that pulls across the back will restrict your movement and cause fatigue on long sessions. For a custom suit, request additional back length.
Sleeves Ride Up at the Wrist
Cause: Sleeve length is too short, or the suit doesn't have sufficient stretch panels at the elbow.
Fix: Measure sleeve length with your arm slightly bent (as in a riding position). A well-designed suit will have stretch panels at the elbow to accommodate the position change.
Suit Feels Tight Across the Chest When Zipped
Cause: Chest measurement taken too loosely or incorrectly.
Fix: Chest measurement should be taken at the fullest point, with the tape snug but not compressing. Add 2–4cm for a base layer. A suit that's too tight across the chest will restrict breathing and fatigue you faster on track.
1-Piece vs 2-Piece: Does Fit Differ?
Yes — significantly. A 1-piece suit is fitted as a single garment, so the relationship between torso length, leg length, and riding position is built in. A 2-piece suit gives you more flexibility to mix sizes between jacket and trousers, but the connection zip must sit at the natural waist to prevent the jacket riding up under braking.
Read our full breakdown: 1-Piece vs 2-Piece Motorcycle Suit.
What to Expect When Ordering a Made-to-Measure Suit
- Submit measurements — use our measurement guide and take each measurement twice to confirm accuracy.
- Confirm the spec sheet — leather grade, armor level, color, and panel layout are confirmed before production begins.
- Production — a made-to-measure suit is cut and assembled to your exact dimensions. Allow 4–6 weeks for production.
- First fitting — when the suit arrives, try it on in your riding position before riding in it. Check all armor positions before your first session.
- Break-in period — leather suits, particularly kangaroo, will soften and conform to your body over the first few sessions. Minor tightness in a new suit is normal; restriction of movement is not.
The Bottom Line
A made-to-measure suit is only worth the investment if the measurements are accurate. Take your time, use a helper, and measure in your riding gear. The result is a suit that moves with you, keeps armor exactly where it needs to be, and fits better after every session as the leather conforms to your body.
Ready to start? Explore our custom leather racing suits and get in touch to begin your made-to-measure order.