Just to be clear, your gloves must be BROWN and "hat" includes a helmet these days. Some venues still give you odd looks for using them but I don't believe they are allowed to mark you down for wearing one. Happ's actively encourages the use of helmets. I simply dug out my old black velvet helmet from my hunter days and used that for all three phases. In marathon you wear whatever you want and EVERYONE wears helmets, often with colorful covers to match your harness pads. People go crazy with the color-scheming thing on marathon day, it's really fun. :lol:
For dressage/cones I personally wore black slacks which were hidden by a length of hunter green fabric I pinned around my waist. It fell nicely and looked like a good driving apron although this year I plan to properly hem it and get a velcro strap around the top. You also need nice looking boots like a pair of lace-up Lariats on your feet.
Leia