Smith Optics Convoy Mips MTB Mountain Cycling Helmet

When designing the Smith Convoy MTB helmet, we set out to create a mountain bike helmet that felt like it was tailor-made for your head. Turn the dial in back, and the VaporFit™ system adjusts like a halo around the skull. When it comes to comfort and protection, the helmet ticks all the boxes. It has a MIPS® liner system and all the ventilation you'll need through the hottest days on the trail. In addition to easy integration with performance eyewear, it also features outside channels that store your shades when dusk sets in.
Key Features:
- 2 fixed vents for consistent airflow
- Integrated visor
- Performance comfort lining
- Lightweight, low-bulk single-layer webbing
- Weight (Size M, MIPS®): 11 oz / 3 g
- Sizes: S - 51-55cm, M - 55-59cm, L - 59-62cm, XL - 61-65cm
Protection
- Lightweight in-mold construction
- MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head
- CPSC and CE EN 178 certified
- AS/NZS263 certified
Fit / Integration
- Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience
- AirEvac™ ventilation system integrates with Smith goggles for fog-free lenses
- VaporFit™ dial adjustment system offers 27-degree fit adjustment with the turn of a dial
Occasionally, without notice, manufacturers change product design and/or specifications.

Smith Helmet Size Guide
Use the below chart and guide to find the correct size Smith helmet for you.
|
Head circumference (cm) |
S |
51 - 55 |
M |
55 - 59 |
L |
59 - 63 |
XL |
63 - 67 |
How to measure
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.

Once you know the circumference of your head, see the available sizes shown on the product and select the appropriate one.
The majority of cycling helmets have some form of adjustment for size, usually in the form of a ratchet adjuster to tighten or loosen the straps, some helmets will also come with different thickness pads to further customise the fit.
Read our clothing size guide for more information on sizing.
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