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Smith Optics Engage MIPS Mountain Bike Helmet

Smith Optics Engage MIPS Mountain Bike Helmet
  • Color: Matte Moss/Stone
  • Color: Matte Moss/Stone
  • Color: Matte Moss/Stone
  • Color: Matte Midnight Navy
  • Color: Matte Coyote/Indigo
  • Color: Matte Black
  • Color: Matte Black
  • Color: Matte Black
  • Color: Matte White/Cement
  • Color: Matte White/Cement
  • Color: Matte White/Cement
Color: Matte Moss/Stone
Size: Select size
Please select options Unavailable


Big berms, rock gardens or flowy rollers.

No matter the trail, get after it with confidence in the Smith Engage mountain bike helmet. Zonal Koroyd™ complements MIPS® for energy-absorbing impact protection in the event of a crash.

A dial adjustable fit and extended back coverage provide a locked-in feel.

On hot days or exposed climbs, 20 fixed vents and our AirEvac™ ventilation system keep you cool and comfortable.

Channels on the front make it easy to stow eyewear and a two-position visor rotates up for on-the-go goggle storage.

  • 21 fixed vents for consistent airflow

  • Performance comfort lining

  • Lightweight, low-bulk single layer webbing

  • Two position adjustable visor

  • Adjustable dial fit system for a customized fit

  • Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenience

  • AirEvac ventilation system integrates with Smith eyewear for fog-free lenses

Mips® Brain Protection System reduces rotational forces caused by angled impacts to the head.

KOROYD ultimate protection absorbs more energy and works better than traditional materials because it creates crumple zones by using core tubular technology. This outperforms other materials at every stage of compression, helping reduce the risk of injury.

Read more about Koroyd at

Small 51 - 55 cm
Medium 55 - 59 cm
Large 59 - 62 cm
X-Large 61 - 65 cm

How To Fit Your Smith Helmet



Weight (g) 350g (Size Medium)
Retention System Adjustable Dial Fit System
Protection MIPS (Multi-Directional Impact Protection System) | Zonal KOROYD® Impact Protection
Certification CPSC | CE EN 1078
Type Mountain

* Subject to change without notice.


Part Numbers

Option UPC Store SKU
Matte Moss/Stone / Medium 716736763590 HEL525454263
Matte Moss/Stone / Large 716736763606 HEL521364343
Matte Midnight Navy / Small 716736925004 HEL597818854
Matte Midnight Navy / Medium 716736925011 HEL591369994
Matte Midnight Navy / Large 716736925028 HEL591427834
Matte Black / Large 716736763699 HEL526286683
Matte White/Cement / Small 716736763712 HEL58631784
Matte White/Cement / Medium 716736763729 HEL589936254