Productdescription
MTB AIRCRAFT Comfort Liner Kit
Adult Helmets Size Chart
| AIRCRAFT & STATUS | IN | CM | Liner Size |
|---|---|---|---|
| XS | 20 7/8 - 21 1/4 | 53 - 54 | 14 mm |
| S | 21 5/8 - 22 | 55 - 56 | 12 mm |
| M | 22 1/2 - 22 7/8 | 57 - 58 | 12 mm |
| L | 23 1/4 - 23 5/8 | 59 - 60 | 14 mm |
| XL | 24 - 24 3/8 | 61 - 62 | 14 mm |
| XXL |
24 3/4 - 25 1/4 |
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