I'm using shoe snob's plastic (travel) shoetrees. I had a couple pairs of those trees that i only use for travel, so when I'm home for a while, I've got them laying around. Anyway, I just screwed them down to the lowest length. They're adjustable. They fit great in the heel and are a little tight across the forefoot, but that's perfect, because originally the sneakers were too tight across my cuneiform bone. After about a week of stretching/wearing they're perfect.
5/27/15 at 7:05pm