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SmithSession MIPS Helmet


Item # SMI00HX

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Item # SMI00HX

Session MIPS Helmet

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


Head Circumference

20 - 22in

(51 - 55cm)

22 - 23in

(55 - 59cm)

23 - 25in

(59 - 63cm)

25 - 26in

(63 - 67cm)

 SMS / M
Head Circumference

19 - 21in

(48 - 53cm)

21 - 23in

(53 - 58cm)

19 - 22in

(48 - 56cm)

How to Measure:
Measure around your head where your hat would fit comfortably.

View more Mountain Helmets

    What do you think about this product?


    >Rating: 4

    Comfy and Looks Good

    I love the ratchet that tightens and loosens this helmet. It is functional and has a great look.

    >Rating: 3

    Solid helmet but little padding.

    I've put it through the wringer

    A decent helmet with good style, fit and ventilation but the padding is cheap and almost non-existent. After an hour or so of riding, the helmet gave me headaches and became uncomfortable.

    >Rating: 4

    decent helmet

    I've used it several times
    True to size

    Love the style, ventilation, visor functionality, and MIPS at a great price point. A couple gripes, though - the front brim of the helmet sits really low on the brow (I mean really low) and may push your sunglasses down your face. You can adjust the inner suspension mechanism slightly to pull it back to a more serviceable fit, but this is not shown in the manual provided. Even with the adjustment, I find it still interferes with bigger-lens sunglasses (i.e. POC). The other gripe is that the sweatband is super minimal, so a lot of sweat will drip into your eyes. It is possible that I have a misshapen head and excessively active sweat glands, though. The fit and style are otherwise good. Will definitely keep the helmet, albeit while using smaller sunglasses.

    >Rating: 5

    Favorite helmet I've had

    I've put it through the wringer

    Love this helmet - Easily adjustable, fits my head perfectly which is always touchy with both MTB and ski helmets for me. Stays really stable when I'm riding and the visor is easily adjustable depending on the sunlight, etc. Always helps when the product looks so good too. I bought the green/white one and it's always receiving compliments.

    >Rating: 5


    I've put it through the wringer

    Looks good, feels good, what more do you need to say. Highly adjustable and a great fit.

    >Rating: 5

    Fantastically Wonderful

    I've put it through the wringer
    True to size

    I purchased the Forefront when it first came out and really love the fit of the helmet. But did not love the way the Koroyd construction somewhat restricted airflow. Don't get me wrong, it didn't trap heat against my head, but it didn't allow for breezes to pass through the helmet without restriction like other helmets I had owned. In comes the Session. The ventilation is better in my opinion and the coverage and protection is still there. I am a big fan!


    Has anyone tried putting a light on this helmet?

    >Rating: 5

    Protective, Comfortable and Breathable!

    I've put it through the wringer

    I've had the Smith Session MIPS Mountain Bike Helmet for about a month now and have ridden in it for a bit over 100 miles so far. I must say that for me, Smith helmets fit the shape of my head very well - just like all of the other snow & mtb helmets I own from Smith, size Large fits great (I wear a 7 1/2-7 5/8 fitted hat). The helmet breathes well on hot days, and I like how the visor can move up and out of the way or down to block direct sun easily, but doesn't move around when the trail is rough. This helmet just replaced my original Smith Vantage, and it's been great so far!

    >Rating: 5

    Nice and lightweight

    I've put it through the wringer

    Super durable helmet, its comfortable and lightweight. Even on super hot days it doesn't feel like a burden to wear and is a good solid fit.

    >Rating: 4

    Good Choice

    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.

    >Rating: 5


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

    >Rating: 4

    The Cool Kid

    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.

    >Rating: 1

    visor broke 1st week of use

    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?

    >Rating: 5

    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.

    >Rating: 5

    Great Style and Functionabilty

    I've put it through the wringer
    True to size
    Size Bought

    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.

    >Rating: 5

    Ventilation at it's finest

    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.

    >Rating: 4

    Safe, Stylish, and Comfortable.

    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.

    >Rating: 4

    Feels a little heavy

    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