• Alchemy | Half Shell Bike Helmet-Half Shell-Kali-Black | Gunmetal-S|M-Dirty Jane
  • Alchemy | Half Shell Bike Helmet-Half Shell-Kali-White-S|M-Dirty Jane
  • Alchemy | Half Shell Bike Helmet-Half Shell-Kali-Black | Blue-S|M-Dirty Jane

Alchemy | Half Shell Bike Helmet

Designed with the trail rider in mind, the Alchemy is ready for whatever your trail looks like. From long, knee-busting climbs, to ripping fast descents, the Alchemy will energize you to keep pushing, keep exploring and keep pedaling.

Consumer Reports called the Alchemy a "Top Fit for Mountain Bikers" and scored it 84 out of 85 in their independent testing. The Alchemy uses our Composite Fusion technology and LDL to dissipate any impacts as quickly and efficiently as possible. It also comes with a Micro-Fit Closure System and 2-Position Height Adjustment.

Weight: 300 g / 10.5 oz

Certification: EN 1078, CPSC

Just a few things you should know about shipping:

  • All orders are processed within 3 days. Some orders are experiencing a delay in ship time due to warehouse staff shortage, so please be patient! Tracking information will be sent once your order is processed so you can stalk it online.

  • We want you to get your goodies as soon as possible but some products ship from overseas and can take up to 14 days to arrive.

  • If you're ordering into Canada you may incur import duties.

  • Dirty Jane hats and tees are still playing catchup from warehouse shutdowns and can sometimes take up to 4 weeks to arrive. 

  • And if you've ordered products from multiple brands, your order may arrive separately.

  • We're still a small business and can only support exchanges and store credits. 

Please email us at if you have any questions about your order. We're here to help!