Session MTB Cycling Helmet with MIPS - Lightweight Koroyd Protection

In this review the Session MTB Cycling Helmet is evaluated for riders who want downhill capability without excess weight. The bottom line: this helmet delivers targeted impact protection through zonal Koroyd coverage and the MIPS Protection System, making it a strong pick for all-mountain riders seeking ventilation, eyewear integration and a secure fit. It balances protection and airflow so riders who earn their descents can stay fast and confident without sacrificing comfort on long climbs.

Key Features

• Zonal Koroyd coverage: Lightweight energy-absorbing material protects critical areas while improving ventilation compared with traditional foam construction.
• MIPS Protection System: Low-friction layer inside the helmet is intended to reduce rotational forces in certain impacts for added safety.
• 15 fixed vents with AirEvac: Channelled airflow keeps the head cool and helps prevent fogging of glasses or goggles during sustained efforts.
• Ionic+ lining: Sweat-activated odor control helps keep the interior fresher on multi-day rides and long sessions.
• Adjustable visor and fit: Three-position visor and an easy adjustment system provide a secure, comfortable fit for varied riding styles and helmet-position preferences.

Who It's For

The Session is aimed at all-mountain and trail riders who split time between climbs and technical descents and want modern protective technology without a heavy downhill-only shell. Riders who wear Smith goggles or glasses will appreciate the vision integration and AirEvac ventilation that reduce lens fogging.

Racers who demand full-face coverage or riders prioritizing the absolute lightest road helmet should look elsewhere; this helmet targets a middle ground of impact protection, ventilation and eyewear compatibility rather than minimal weight for pure road speed.

Pros & Cons

Pros

• Excellent ventilation and eyewear compatibility thanks to 15 vents and AirEvac channels.
• Koroyd zones offer efficient energy absorption while keeping overall weight reasonable.
• Ionic+ lining reduces odor and the adjustable visor offers useful sun and debris control.

Cons

• Not a full-face downhill helmet, so it is not appropriate for aggressive enduro or downhill racing where chin protection is required.

Specifications

Our Verdict

The Session helmet is a strong value for all-mountain riders who need reliable impact management, good ventilation and eyewear-friendly design. With Koroyd zones and MIPS it offers modern safety features without the extra bulk of a downhill-only shell, making it a sensible and versatile choice for trail riders who want protection and comfort on long days.

Frequently Asked Questions

Does this helmet work with goggles?
Yes, the Session is designed for vision integration and AirEvac channels to reduce fogging when used with Smith goggles or glasses.

Is this helmet certified?
Yes, it meets U.S. CPSC standards for bicycle helmets and complies with CE EN 1078 and AS/NZS 2063.

Can it be used for downhill racing?
It provides strong zonal protection but is not a full-face downhill race helmet, so riders needing chin protection should choose a dedicated full-face model.