MET Trenta 3K Carbon Airframe Road Cycling Helmet







- 3K Airframe: integrated carbon wing structure for superior performance with uncompromised ventilation and protection
- Virginia Tech 5 Star: ranked among the top 5 in the most recognised safety test
- Mips Air®: ultra-lightweight rotational system for advanced protection
- 24 vents with optimized internal channelling
- Integrated sunglasses ports
- Reduced head contact for maximum ventilation
- Compact volume and fully wrapped polycarbonate shell
- Optimised fit: comfortable and secure internal shape
- Safe-T Orbital system: 360°, vertical, and occipital adjustment
- Air Lite straps with adjustable dividers
- 16% more airflow than the previous generation.
- Weight: 260g in size M
- Size: S:52-56, M:56-58, L:58-61cm
Occasionally, without notice, manufacturers change product design and/or specifications.

Met Helmet Size Guide
Adult Met helmets
| Size | *Centimetres | Inches |
|---|---|---|
| S | 52-55 | 20.47-21.65 |
| M | 54-57 | 21.25-22.44 |
| L | 58-61 | 22.83-24.01 |
| XL | 60-64 | 23.62-25.19 |
Kids Met helmets
| Size | *Centimetres | Inches |
|---|---|---|
| Kids | 46-53 | 18.11-20.86 |
| Youth | 52-57 | 20.47-22.44 |
* Please note: If helmet size shown is different when you select the size option this overides the table above.
How to Measure Your Head Size
How to measure yourself for a helmet 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.

Met are one the world's leading manufacturers of high quality bicycle helmets, synonymous with care, reliability, efficiency and sustainable development.
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MET Trenta 3K Carbon Airframe Road Cycling Helmet
“ Just brilliant, everything you could want.