I've been wanting to try some out but haven't found any that will fit in my Sidis. Shoes are pretty narrow, but still a normal width (made narrow, not actually a narrow width)
I have tried Soles cycling insoles and Specialized BG insoles and neither would fit into the shoe. I know I could trim them down, but kind of silly to spend decent money for something I need to cut down. I'd rather I could buy a narrow pair.