micoach is all you need to get the results you want.
I was reluctant at first to order these based on the reviews posted, but I'm very glad I bought them. My feet are pretty sensitive and the "spikes" don't hurt at all, they feel amazing -- ESPECIALLY with no socks! I've been wearing these around all day and don't plan on taking them off until I go to bed :) I usually wear a 9.5, ordered a 9, and they're a tiny bit long, so you'll probably want to order a half size to a size down depending on how wide your feet are. The strap is adjustable, though.
I hate these sliders because of the unbearable discomfort of the plastic "spikes" I have no idea how anyone would like anything but a smooth surface under his feet. I couldn't wear these sliders more than an hour! My feet sere sore for the rest of the day!
This is a great looking shoe and comfortable, although I have flatfoot I think my toes receive a little bit of pressure when I walk.. Thats normal I guess. Only con I see is that the outsole material doesn't look sturdy for everyday walk on the streets and in rough surfaces but good for gym floors so I think outsole wont last more than a year...