how large (deep and wide) is the brim?
JIM G Hi, I measure 2 3/4" deep, at the center, and 7 1/4" at its absolute widest point. Definitely deeper than a regular baseball cap, and I think it's terrific as a rain cap.
CHARLES D the cap is 6 1/2 deep from the center of the hat & 7 inches wide.
MICHAEL M The brim is about the size of a traditional baseball cap. I have a smaller head and wear a 6 7/8 hat and this hat is a perfect fit. There is plenty of room for larger heads but might be tight on a very large head......great hay. I love to wear it under the hood of my precip jacket as well as on its own during backpacking. Light weight and not to hot. Great hat.
H W I don't have a ruler handy, but these hats are pretty much standard baseball cap size and shape (like every baseball cap you've ever owned), except they are made with a really nice ripstop DWR fabric and they have a separate inner liner that is 100% waterproof. They aren't small brimmed like some running caps. Terrifc all-around cool or foul-weather cap. Probably not quite breathable enough for a hot summer day with no rain in the forecast.
THOMAS S the brim is 7" where it attaches to the rest of the hat and 3" long in the front. it's a medium bill in the ball cap world. I wear a 7 1/4 and was looking for more of a form fitting, waterproof hat - this is it. Try one - I now own four in different colors.
SANG T The brim is good length but it makes your head look smushed since the cap is not very deep.
STEVE P The brim is not much deeper than a normal ball cap. The cap is a great fit. I wear hats everyday and this one is one of the better fitting ones.