Founded in 1963, Alpinestars is a global leader in motocross gear and motorcycle protective equipment. Known for innovation, their Tech 10 boots, riding jerseys, pants, and gloves combine performance, comfort, and safety. From pro racers to everyday riders, Alpinestars sets the standard browse Alpinestars motocross gear at BTO Sports.
Troy Lee Designs - Flowline Point MIPS Helmet (MTB) (Youth)
Selection
Coral/Charcoal / OSFA
Troy Lee Designs MTB Helmet Size Chart (A1, A2, A3)
| Size | Head (in) |
|---|---|
| Y/XS | 19–21 1/4" |
| XS/S | 21 1/4–22" |
| S | 21 1/4–22" |
| M/L | 22–23 1/4" |
| XL/2XL | 23 1/4–24" |
How to measure: wrap a flexible tape measure around your head about 1" above your eyebrows and ears, where the helmet sits. If between sizes, size down for a snug race fit or up for comfort. Stage uses XS/S, A1 uses Y/XS plus S, A2 and A3 use S only. Refer to the variant picker on the product page for which sizes are available.