Greatest invention since sliced bread. The small bill angled sharply downwards gives almost total protection from late *afternoon sun, and a tilt of the head gives perfect visibility ahead. Also, the design of the bill makes it much less likely to be blown off if you don't also wear a helmet.
*Probably early morning sun. I really haven't tried that.
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Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.