I am not a runner but I wanted to add my 2ยข in here about the VFF Bikilas.. I finally got a pair, and I originally thought these would be neat due to the extra tread.. and offer a little more protection from the crazy hot pavement we get here in TX, except that they don't even come *close* to fitting me - I can't even get them on my feet I can just barely get my KSO's on (I eventually cut a slit in the top so I could get them on easier - it doesn't seem to effect the performance of those), so I knew to order a size up (my KSO's are a size smaller than my classics) and even with that, there's just no way I can get my feet in these... there's no stretch in the material, and I'm not willing to cut a brand new pair of VFF's for the sake of "maybe" being able to put them on, so I'm sending them back

Very disappointing.. my classics in 39 are on the verge of being too big, so trying a 40 is really out of the question - they'd be much too big and I'm not convinced it would really give any more space in the instep area.