Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Don't normally use a helmet, but when I did it was a Giro Flak:

If I was going to get a new one it'd be the Bern Watts:

same here, had the flak, gave it to a mate when i got my bern...

bought it from http://www.powerkiteshop.com/bern_watts_helmet.htm

did as they said;

Measure around you head using a tape measure around the temple of your head.

fits fine...