This jacket is fitting small as compared to many other Alpinestars street jackets. To help you choose a size, I’ve put together a chart below that shows you Alpinestars chest size estimate for each jacket size, and also our estimate of the actual max chest of this jacket. In the very small sizes, the jackets are close to what you might expect but as you go up the size chart they are maybe a half size small in the larger sizes.
The best thing to do to choose a size is to measure your chest and belly and choose a jacket size that will be big enough to accommodate both, and for most, that will put you in a jacket that is about one size bigger than you normally wear.
Note: If you plan to add a back protector, add 1” to your chest and belly measurements before choosing a size. Add another inch if you plan to add chest protectors.
| Jacket Size | Alpinestars Est of Chest Range |
Our Estimate of Max Chest |
Max Belly |
|---|---|---|---|
| Small | 37.5 to 39 | 38 | 36 |
| Medium | 40 to 41.5 | 40 | 38 |
| Large | 42 to 43.5 | 42 | 40 |
| XL | 44.5 to 46 | 45 | 43 |
| XXL | 47 to 49 | 47 | 45 |
| XXXL | 49 to 51 | 50 | 48 |
| XXXXL | 51.5 to 53 | 52 | 49 |