I have in my possession, both size 47 and 48. I can't decide which pair I should go with.
The 48's have a thumbs width of room in front of my big toe, but I can't tighten them enough to feel secure.
The 47's fit good around my feet, but the room in front of my big toe is maybe 3/4" when standing in them. I remember from buying a pair of Specialized Rimes that when I was on the bike, my feet felt fine standing in a certain size, but on the bike after my feet warmed up, they felt bunched in the toe box.
Given that these seem to be a leathery material (the MW81's), do they stretch at all? My worry is I can't try them on the bike because I don't want to mark up the bottom with cleat imprints, in which case I don't think I could return the wrong size.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Paging Shimano MW-81 owners