WARNING: California’s Proposition 65
Proposition 65 Warning for California Consumers
Shoei X-15 Adult Street Helmets
Shoei developed the X-15 with technologies born from racing with one mission in mind, to make the fastest riders on the planet even faster. By designing and refining the X-15 helmet in their state-of-the-art wind tunnel facility, Shoei was able to reduce drag by 6.1% And lift by 1.6% Compared to it's predecessor the X-14. The X-15 features a Multi-Ply Advanced Integrated Matrix Plus (AIM+) Shell, a six-ply matrix of fiberglass with lightweight organic and high-performance fibers to provide optimal impact-absorption, strength and elasticity. Packed in the X-15's shell is a multitude of features fit for a pro and ready to boost your performance, safety and comfort.
New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).
Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.
Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.
Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.
Refurbished, Last Call - Same as refurbished. Last call or closeout item.
NOTE: These sizing charts are provided by the specific manufacturer or the distributing company for this brand. Motorhelmets.com is not responsible or guarantee's the accuracy of the measurement or fit of the merchandise listed on this page.
To access our measuring tape Click Here. 
(Download the following head measuring tape, print, cut and measure your head.)
Each helmet model has small differences in its shape that ultimately affect the fit. For this reason, it is essential to test a helmet before buying it. Test whether it sits on your head properly by putting on the helmet and moving your head to the left and right, as well as up and down while holding the helmet firmly with both hands. If your head can move too freely within the helmet, we recommend that you try a smaller size. If you feel local pressure points, then choose a helmet that is one size larger, or perhaps try on a different model.
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
| SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
|---|---|---|---|
| 2XS | 51 - 52 | 6 3/8 - 6 1/2 | 20 1/8 - 20 1/2 |
| XS | 53 - 54 | 6 5⁄8 - 6 3⁄4 | 20 7⁄8 - 21 1⁄4 |
| SM | 55 - 56 | 6 7⁄8 - 7 | 21 5⁄8 - 22 |
| MD | 57 - 58 | 7 1⁄8 - 7 1⁄4 | 22 1⁄2 - 22 7⁄8 |
| LG | 59 - 60 | 7 3⁄8 - 7 1⁄2 | 23 1⁄4 - 23 5⁄8 |
| XL | 61 - 62 | 7 5⁄8 - 7 3⁄4 | 24 - 24 3⁄8 |
| 2XL | 63 - 64 | 7 7⁄8 - 8 | 24 3⁄4 - 25 1⁄8 |
| 3XL | 65 - 66 | 8 1⁄8 - 8 1⁄4 | 25 5⁄8 - 26 |
