Alterra 6D Helmet - Segment Slate Blue

6D ALTERRA HELMET

The 6D Alterra, an all-new full-face enduro helmet, sets a new standard by combining lightweight design, optimal ventilation, and long-lasting comfort without compromise. Equipped with Omni-Directional Suspension™ (ODS) technology for advanced impact protection, an in-molded carbon fiber chin bar, and perfectly optimized airflow, it provides full coverage without unnecessary bulk. Certified for e-bike and downhill riding, the Alterra is the ideal companion for enduro riders pushing their limits on any terrain.

FEATURES

• Patented Omni-Directional Suspension™ (ODS)
  Multi-impact EPP inner liner and EPS outer liner: provides layered protection.
  In-molded carbon fiber internal roll cage: adds structural integrity while maintaining low weight.
  Polycarbonate shell: ensures durability and impact resistance.
  EPP sternum and clavicle crash pads
  lonic+ antibacterial comfort liner
  Goggle compatible, with under-visor storage
  Glasses compatible
  Directional venting and sub-channeling
  Extra-large rear directional exhaust vents
  Large over-brow ventilation channels
  Fidlock closure system
  3-position snap-away adjustable visor
  Travel bag included
  Multiple comfort liners and pad sets included
  Weight: 710 g (M/L)

CERTIFICATIONS

• CPSC
• EN 1078
• AU/NZS 2063
• AU/NZS 8776 (e-bike)
• ASTM F1952 (Downhill)
• ASTM F2032 (BMX)

SIZE GUIDE

Measure your head circumference: use a flexible tape measure to measure horizontally around your head, about 2.5 cm above the eyebrows and 1.25 cm above each ear. If your head falls between two sizes, try the smaller one first. Often, helmet pads and liners can be adjusted for a customized fit.

HELMET FIT

• Position it correctly: the head should be in contact with the liner all around, and the cheek pads snug on the cheekbones.
• Test the movement: with the chinstrap fastened, try to move the helmet. If it moves easily without pulling the skin, it is too big.
• Check rotational stability: the helmet should not rotate or slide around the ears.
• Safety first: if the fit is not correct, do not wear the helmet and choose the appropriate size.