If you’re anything like us, there’s a good chance that, while on your bike, you don’t always have a plan. You might ride all afternoon, or you might just ride someplace and stay there all night. If you’re one of the drifters – one of the wanderers – you should have a wool hat. Even in the summer it’s a good idea to keep a wool hat in your bag in case you find yourself sheltering someplace for the night. Grandma always said, "you lose 75% of your body heat through your head." Now, we aren’t doctors, but we’re smart enough to know not to mess with Grandma. Wear your wool hat.