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Smith Session MIPS Helmet


Item # SMI00HX

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Item # SMI00HX


Endless trail sessions await.

Style meets ventilation for total comfort in all-mountain applications in the new Smith Session MIPS Helmet. This all-new cranium coverage keeps your noggin on lock down with a combination of Smiths Koroyd technology and MIPS, shielding you from impacts both direct and oblique, so you can charge through rowdy rock gardens, while staying ventilated as you weave your way through technical switchbacks to the top for round two. And smith doesn't hold back on the good looks either, with a modern and sleek style that falls neatly between the previously loved Rover and Forefront, giving just a little more coverage than its cross-country cousin, but with less bulk than the enduro-ready Forefront.

Since your crashes rarely happen at a straight-on angle, MIPS addresses the specific pressures of an oblique, or non-direct impact, by separating the outer shell from the inner, MIPS layer. In the event of an angled impact, the outer layer slides across the MIPS layer, dissipating rotational force to reduce brain deformation, which is often responsible for concussions and long term damage. Since the impact of mountain bike crashes tends to happen at angles other than 90 degrees, this added element of protection will likely come into play if you take an unfortunate digger.

Backing up the MIPS technology with a bit of Smith's own work is a layer of Koroyd protection. Koroyd is what Smith is calling the funny looking layer of honeycomb tubes that runs beneath the outer shell and more traditional EPS foam. It's made of thousands of tiny, extruded co-polymer tubes that absorb impact but have a fenestrated surface that allows for a level of breathability impossible to achieve with solid EPS foam while absorbing a claimed 30% more energy. Plus, it's pretty cool looking, especially in Smith's mix of contrasting and complementary color schemes.

For total comfort, Smith equips the Session with 15 optimized vents that channel air in, and AirEvac at the front edge that sends cool air underneath your sunglasses to keep your lenses as fog-free as possible on long, sweaty climbs. The back is adjustable with VaporFit adjustment system that allows you to ratchet things down to the perfect spot, while the inside XT2 liner fights odor, and allows for easy washing after a particularly perspiration packed ride. The visor in front is adjustable in three positions to allow you the right amount of coverage for open, treeless climbs, and wooded, shady descents alike. And to make sure you've got the means for night rides and grabbing sick footy, the helmet is compatible with both light and camera mounts.

  • Style meets coverage for this all-mountain slayer
  • MIPS technology protects against rotational forces
  • Add an extra 30% of protection with Koroyd layer
  • 15 large vents keep cool air funneling through
  • VaporFit adjustment dials in total comfort for the ride
  • Keep your lenses fog free with AirEvac technology
  • 3-position visor adjusts easily for different conditions
  • Odor fighting XT2 liner keeps your scalp fresh

Tech Specs

Shell Material:
Aerocore, Koroyd
Impact Foam:
15 optimized vents, AirEvac
Fit Adjustment:
VaporFit system
3-position adjustable
CPSC, CE EN 1078
Recommended Use:
cross-country, cyclocross, downhill, mud/sand/snow, trail
Manufacturer Warranty:



Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

size medium

Size Chart


Arrival, Aspect, Camber, Compass, Forefront, Gage, Maze, Overtake, Sequel, Valence, Vantage, Variance
Head Circumference  20 - 22in
(51 - 55cm)
22 - 23in
(55 - 59cm)
23 - 25in
(59 - 63cm)
25 - 26in
(63 - 67cm)
Allure, Holt
Head Circumference 20.5 - 21in
(52 - 54cm)
21 - 22in
(54 - 56cm)
22 - 23in
(56 - 58cm)
23 - 24in
(58 - 60cm)
24 - 25in
(60 - 62cm)
Gage Jr, Holt Jr, Upstart Jr, Zoom Jr
  Youth SYouth M 
Head Circumference  19 - 21in
(48 - 53cm)
21 - 23in
(53 - 58cm)
How to Measure Head Circumference:
Measure around your head where your hat would fit comfortably.

Reviews & Community


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Good Choice

  • Familiarity: I've used it several times

Good fit and feel, I like the look and the MIPS is just an added bonus. Happy with the purchase.


    Great fit just like their ski helmet line. Added protection of mips is peace of mind. Nice and breathable. Great enduro/xc helmet

    The Cool Kid

    • Familiarity: I've used it once or twice and have initial impressions

    Not only can you be cool with the epic ventilation system (15 vents!) of this helmet but you can also look cool with shape design and the awesome colors Smith has chosen. MIPS adds extra protection for your most important organ. The visor is a bit wonky but does the job at a great price point.

    visor broke 1st week of use

    • Familiarity: I've used it once or twice and have initial impressions

    visor broke 1st week of use with hand while adjusting. smith will not send me a new visor. they want me to send them the entire helmet for a warranty process of 3-4 weeks. putting me without a helmet for weeks in the middle of summer. seems to me that a company like smith could just send the customer a new replacement visor no?

    Excellent Helmet

      Very happy with the fit and style of this helmet. It's lightweight and really easy to adjust. I would definitely recommend this helmet to everyone.

      Great Style and Functionabilty

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Large

      I love my session, I have a larger head and have had issues with other helmets sitting high and looking odd on my head. This helmet sits low and has great ventilation for any condition.

      Ventilation at it's finest

      • Familiarity: I've used it several times

      Amazing ventilation for durable cranium coverage! Impressively adjustable and does not loosen up on you during the ride. I am happy with the refreshing, clean design on top of a price tag most cyclists can afford. I will be wearing this helmet for multiple cycling disciplines.

      Safe, Stylish, and Comfortable.

      • Familiarity: I've used it once or twice and have initial impressions

      My first impressions of this helmet are great! The micro adjust lets you dial in a comfortable fit and there is great airflow! I would recommend this helmet to someone looking for a safe, and affordable helmet.

      Feels a little heavy

      • Familiarity: I've used it several times

      I just picked up this new helmet, and I LOVE the styling, and Smith helmets, especially with MIPS. My one hesitation is it feels slightly heavy. This also might be getting back into cycling shape and looking up. But all in all this is a really great helmet and super comfortable