Sun protection while touring I'm preparing for a mini tour in the greek islands this August and I'm getting concerned about sun protection. I'm considering not using a helmet (as I'll reach 30 km/h max). Last year I was wearing a "buff" that protected me from sweat, but did not protect me from minor sunburn. Would a hat be a solution, but of what type (considering strong winds)?
I recommend wearing a helmet and something like a cycling cap or something similar to an Under Armour skull cap
 that can absorb sweat and protect your head from the sun.

As for your neck, I've always used sunscreen during sunny rides.  Get a bottle that can fit in your saddlebag or backpack, and apply it liberally and as often as necessary.  Sunscreen will protect you from the sun without impeding your ability to move, and it will not be affected by strong winds.