OK so to be fair I love the GEL-NIMBUS trainers, I own the GEL NIMBUS 10 and orders the 17 on the strength of my last purchase.<br />But there was a sizing problem, even though I ordered the same size shoe, the new 17s is too small, I would say 1/2 a size too small.<br />I requested a replacement but AMAZON only offered a refund.<br />In the refund process I loose the PRIME DAY discount I got from the original purchase.<br />So basically the manufacturer makes a shoe sized a little differently from their last one and I have to pay an extra $15 to fix that.<br />No thanks, in this case I shop elsewhere and / or try a different shoe all together.