Hi guys,
Since five ten moved production to china and the unparallels came out, the sizing has been a mess! People have been telling me that because the original five ten guys set up unparallel the sizing will be similar to the old five tens but that is utter rubbish! Now of course the variation will be different for every shoe but for me the following holds true:
old pink = size x, new pink = size x+0.5 (eg UK 7 in old pink, get UK 7.5 in new pinks)
old pink = x, unparallel up lace = x-0.5 (eg UK 7 in old pink, get UK 6.5 in up lace)
old pink = x, unparallel up rise = x-0.5 (eg UK 7 in old pink, get UK 6.5 in up rise)
I couldn't find any shop that sold the regulus but the same size as the old pinks felt too painful, so if anything go up half a size over your normal old pink climbing shoes.
Hope this helps!
Post edited at 21:26