Although the Kask brand is relatively new in the US, you will likely recognize the Vertigo as the helmet Team Sky wore in the 2012 Tour de France.
One drawback to the Vertigo is that it only comes in two sizes rather than three. Our testers found that it tends to run very small. We went with the size large and found that it fit similarly to large Bell road helmets and slightly larger than Giro Medium helmets, though not as big as large Giros.
The Vertigo is available in a wider variety of colors than any other helmet we tested. There are dozens of different options, including many national flags and pro team designs. You should have no problem finding a Vertigo in a color that matches your kit or waves your national flag.
The Vertigo meets the CE EN 1078, CPSC 1203 and AS/NZS 2063 standards for half-shell cycling helmets.