To upgrade or downgrade the lining of your Arai helmet, you can order the lining in different strengths. To know the strength of your actual lining, please have a look on the label which is fastened on the lining in your helmet. for Tour-X 3 & VX-3 Inner Lining (100% polyester) easily cleaned Dry-Cool Head size Helmet size Lining Code tight standard loose 54 XS II
- 12 mm 10 mm 7 mm 5 mm 55-56 S II 12 mm 10 mm 7 mm 5 mm
- 57-58 M III
- 12 mm 10 mm 7 mm 5 mm 59-60 L III 12 mm 10 mm 7 mm 5 mm
- 61-62 XL IV 12 mm 10 mm 7 mm 5 mm
- 63-64 XXL IV 10 mm 7 mm 5 mm
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