I'm (well, more accurately, my wife is) retrofitting an old Nike Dri-fit shirt and a cheap New Balance running hat I bought online for my costume this weekend for the DL half. Blue running shorts, compression sleeves, and Brooks Guide 9 shoes to complete the ensemble. Trying to keep it pretty simple so it doesn't get in the way, especially with temps being much higher than I had planned for, which is causing me to plan on bringing my hydration pack. (Fortunately, that's blue anyway, so it fits with the costume.) I know I won't PR because I do want to take advantage of as much of the runDisney race experience as I can, but I also don't want to get too bogged down.