Size & Measurement

Getting your measurements right

Stock size charts work for most orders. For made-to-measure or custom-fit products, this guide covers every measurement point our pattern team uses — in inches and centimetres.

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How to Take Measurements

Use a soft cloth tape. Measure over lightweight clothing or fire-resistant underlayers — never over the race suit itself. Keep the tape level and snug, but not tight. Where possible, have a second person take the measurements. Record every figure in centimetres for the most accurate result.

HeightStand upright against a wall without shoes. Measure from the floor to the top of the head.

WeightRecord on a reliable scale. Used together with height to confirm the size selection.

Chest / BustAround the fullest part of the chest, directly under the armpits, tape level to the floor. Breathe normally.

Natural WaistAround the narrowest part of the midsection, level with the navel. Not where the trousers sit.

Seat / HipAround the fullest part of the seat, feet together.

Shoulder to ShoulderAcross the back, from the outer edge of one shoulder bone to the other.

Sleeve LengthFrom the centre back of the neck, over the shoulder point, down to the wrist bone with the arm slightly bent.

InseamFrom the crotch straight down the inside of the leg to the ankle bone.

OutseamFrom the natural waist down the outside of the leg to the ankle bone.

Torso / GirthFrom the shoulder point, down the front through the crotch, up the back and over the same shoulder. Critical for one-piece suits.

NeckAround the base of the neck, with one finger between the tape and the skin.

Bicep / ThighAround the fullest part of the upper arm and upper leg.

Choosing Between Two Sizes

Race suits: always select by the largest of the chest, waist and seat measurements, then confirm against height. A suit correct in the chest but tight in the seat will restrict the driver.
Gloves and shoes: measure both hands and both feet and size to the larger one.
If a driver falls between two sizes in more than one measurement, we recommend a made-to-measure suit.
Rental suits are worn over clothing — add approximately 2 in / 5 cm to the driver's own chest measurement when selecting.
Two-layer SFI 3.3/5 gloves fit approximately half a size smaller than single-layer gloves.
Boot styles with a fire-resistant lining fit approximately half a size smaller than low-cut racing shoes.

Made-to-measure available

Cuircon manufactures fully custom garments, including one-off suits for a single driver. Complete our order form with the driver's measurements and our team will confirm everything before production begins.

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Size Charts

Every product, every size range

Figures shown are body measurements, not finished garment measurements — patterns include the ease required for multi-layer fire-resistant construction and freedom of movement in the seat.

Size	EU	Height (in / cm)	Weight (lb / kg)	Chest (in / cm)	Waist (in / cm)	Seat (in / cm)	Inseam (in / cm)	Sleeve (in / cm)
XS	46	5'3"–5'6" / 160–168	110–130 / 50–59	34–36 / 86–91	28–30 / 71–76	34–36 / 86–91	28.5 / 72	22 / 56
S	48	5'5"–5'8" / 165–173	130–150 / 59–68	36–38 / 91–97	30–32 / 76–81	36–38 / 91–97	29.5 / 75	22.5 / 57
M	52	5'7"–5'10" / 170–178	150–175 / 68–79	38–41 / 97–104	32–35 / 81–89	38–40 / 97–102	30.5 / 77	23.5 / 60
L	56	5'9"–6'0" / 175–183	175–200 / 79–91	41–44 / 104–112	35–38 / 89–97	40–43 / 102–109	31.5 / 80	24 / 61
XL	60	5'11"–6'2" / 180–188	200–230 / 91–104	44–47 / 112–119	38–41 / 97–104	43–46 / 109–117	32.5 / 83	24.5 / 62
2XL	64	6'0"–6'4" / 183–193	230–265 / 104–120	47–50 / 119–127	41–45 / 104–114	46–49 / 117–124	33.5 / 85	25 / 64
3XL	68	6'2"–6'6" / 188–198	265–300 / 120–136	50–53 / 127–135	45–49 / 114–124	49–52 / 124–132	34.5 / 88	25.5 / 65
4XL	72	6'3"–6'7" / 191–201	300–340 / 136–154	53–57 / 135–145	49–53 / 124–135	52–55 / 132–140	35 / 89	26 / 66

SFI 3.2A/1, 3.2A/5 and multi-layer constructions. Body measurements in inches / centimetres. Standard cut — a tall or short fit (±2 in / 5 cm in sleeve and inseam) is available on any stock size at no tooling cost.

How to take these measurements →