does anyone know if one exists on the market? otherwise, does anyone have any ideas about sewing my own --- recommended pattern, fabric, features? i might just cut the hood off my precip jacket though. -- reasons ---- i wear glasses, and a hood doesn't cut it in keeping the water off my glasses, and i just can't see. other reason, i hate the crinkle sound of hood vs. hearing if someone is even walking up behind me. i have a great hat to wear --- some version of a waterproof/breathable outdoor research hat. (sahala?) i have considered using one of the patterns from thru-hiker.com, maybe adding pit zips ..... thank you. d