Size Guide: Alpinestars Tech-Air® Airbags

Tech-Air® 5

Size Chest Size (CM)
XS 78 - 86
S 86 - 94
M 94 - 102
L 102 - 106
L-XL 106 - 110
XL 110 - 114
2XL 114 - 118
3XL 118 - 122
3XL-4XL 122 - 126
4XL 126 - 130

Tech-Air® Race

Size Chest (Inch)
S 33 7/8 - 37
M 37 - 40 1/8
L 40 1/8 - 43 1/4
XL 43 1/4 - 44 7/8
2XL 44 7/8 - 48

Tech-Air® Street

Size Chest (Inch)
XS 32 1/4 - 35 3/8
S 35 3/8 - 37
S-M 37 - 38 5/8
M-L 38 5/8 - 40 1/8
L 40 1/8 - 41 3/4
XL 41 3/4 - 43 1/4 
XL-2XL 43 1/4 - 44 7/8
2XL 44 7/8 - 46 1/2
3XL 46 1/2 - 51 1/8