Really light weight mesh material, you can actually sorta see through it if you hold it up and look through it. great for so-cal weather all year round, best fo those crisp nights. definitely one of my go-to sweatshirts
good to wear boarding on a warm day too, has thumb cutouts to wear under gloves.
i'm 6'4" and got the XL Tall and it fits perfect in the arms and is a little baggy around my torso, fits great for my steez.