- Brand: Kask
- Color: Black
- Age Range (Description): Adult
- Size: Small
- Model Name: PROTONE
- [ PROTONE : Lightness and Performance ]
- With just 215g of weight, Protone has the lowest drag and the fastest heat dissipation coefficients compared to any other ventilated helmet.
- Thanks to several ventilation holes and a thick padding material, heat and moisture are dissipated very fast, improving comfort and performance without giving up on safety: the top area is reinforced with an internal plastic sub-structure that increases crash protection.

































Teresa Gance –
Perfect helmet!
Michael Zwerner –
The Kask protone is great. Super comfy and did provided great ventilation in the Florida heat! I needed a larger size and Mack cycles who I ordered from provided excellent customer service. I spoke with Roy who was kind enough to let me come in and exchange the helmet. He even put one away at the front desk to ensure they didnβt sell it. Thank you
Jon Krool –
Junk, falling apart, padding falling off. Impossible to wear, plastic parts rubbing skin. One month old piece of garbage.
Alfonso Rodriguez –
CΓ³modo , ligero , buena ventilaciΓ³n , lindo
Dalia S. –
Arrived super fast!! Perfect helmet in perfect condition just as described. Thank you. Kask is top-of-the-line you will not find a better helmet than this. As far as comfort and safety this is the best!! Plus the leather strap is what sets it apart from any other brand.
NRS –
Good looks and great fit, helmet used for road cycling.
KennyB –
I’m very satisfied with this purchase. I’ve had it about 3 months now and it fits very comfortable and seems well made. Will be interesting to see how it holds up to the summer when it gets put through heat and sweaty conditions. May provide a further update then.
Scott R. Fotheringham –
No words can describe how cool i look in this helmet.