Smith Optics Jetstream TT Mips Road Cycling Helmet
- Zonal Koroyd® coverage for lightweight, energy-absorbing and ventilated impact Protection
- MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head
- CPSC and CE EN 1078 certified
- VaporFit™ dial adjustment system offers 270-degree fit adjustment with the turn of a dial
- Low-profile Y-strap divider provides a secure fit to reduce wind noise and aerodynamic drag
- Magnetic visor with option of ChromaPop™ or clear lenses, ChromaPop™ lenses enhance contrast and natural color to make the details pop
- Five strategically placed vents for optimal airflow
- Ionic+® antimicrobial lining offers sweat-activated odor control
- Lightweight, low-bulk single layer webbing
- Weight: (Size M, MIPS®): 14 oz / 410 g
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.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
