Picked up a pair of the all yellows, they fit so close to the actual running shoe these things are awesome, can't wait to test them out on the course. The spike pattern is taller than it looks in pictures, I don't think I'll have any issues with slipping.I can't wait to see what other colors they'll add, or even maybe a major edition, but these will be picked up for sure, I wear them all the time off the course, why not on!