Size Chart - Leatt - Helmets
ADV Helmet
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| CM | 53–54 cm | 55–56 cm | 57–58 cm | 59–60 cm | 61–62 cm | 63–64 cm |
| Inch | 20 3/4”–21 1/4” | 21 5/8”–22” | 22 1/2”–22 3/4” | 23 1/4”–23 5/8” | 24”–24 1/2” | 24 3/4”–25 1/5” |
| Shell | S | S | M | M | L | L |
| EPS | S | S | M | L | XL | XL |
| Liner | XS | S | M | L | XL | 2XL |
| Cheek Pads | 40 mm | 30 mm | 35 mm | 30 mm | 35 mm | 30 mm |
Moto Helmet – 9.5 / 8.5 / 7.5 / 2.5
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| CM | 53–54 cm | 55–56 cm | 57–58 cm | 59–60 cm | 61–62 cm | 63–64 cm |
| Inch | 20 3/4”–21 1/4” | 21 5/8”–22” | 22 1/2”–22 3/4” | 23 1/4”–23 5/8” | 24”–24 1/2” | 24 3/4”–25 1/5” |
Moto Helmet – 3.5
| Size | JR M | JR L | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|---|---|
| CM | 51–52 cm | 53–54 cm | 53–54 cm | 55–56 cm | 57–58 cm | 59–60 cm | 61–62 cm | 63–64 cm |
| Inch | 20”–20 1/2” | 20 3/4”–21 1/4” | 20 3/4”–21 1/4” | 21 5/8”–22” | 22 1/2”–22 3/4” | 23 1/4”–23 5/8” | 24”–24 1/2” | 24 3/4”–25 1/5” |
Cheek Pads – 9.5 / 8.5 / 7.5
| Size | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|
| MM | 35 mm | 30 mm | 35 mm | 30 mm | 35 mm | 30 mm |
| Helmet Size | XS / S | XS / S | M / L | M / L | XL / 2XL | XL |
Cheek Pads – 3.5
| Size | YM | YL | XS | S | M | L | XL | 2XL |
|---|---|---|---|---|---|---|---|---|
| MM | 55 mm | 50 mm | 50 mm | 45 mm | 40 mm | 35 mm | 40 mm | 35 mm |
| Helmet Size | YM / YL | YM / YL | XS / S | XS / S | M / L | M / L | XL / 2XL | XL |
How to Measure
| Measurement | Instructions |
|---|---|
| Head Circumference | Wrap the tape measure around your head. Position it so the tape is horizontal to the ground and sits just above your eyebrows. |

