Quote Originally Posted by aicabsolut View Post
I just tried on a bunch of Sidis last weekend.

I think that anything below the 6.6 fits the same (so these will fit like your Zetas). I thought they felt a little bit shorter but roomier (volume) than the 6.6. The 6.6 seemed to be more form fitted, but there was extra length in the toe for what seemed like the proper size. I was trying on 40.5 and 41. The ball of my foot hit at the right spot in the 41s.

To elaborate: My toes felt cramped in length in any shoe below 6.6 (5.5, 5, and under), but there was more volume in the mid and forefoot. I needed 41s, but they seemed a tad wide. 40.5 in the 6.6 seemed like the right length, but a little narrow, and the wide part of my foot hit in front of the wide part of the shoe. Good in the heel cup. 41 seemed like the correct length for the last shape even though there was empty space in the toe, and the midfoot was more comfortable. I would have to adjust the heel cup retention thingie smaller.

Hopefully those comparisons can help you make your decision.

I usually wear Specialized shoes in 40s, but I have some heel slip, so I wanted to try the Sidis. I'm not sure they're worth the extra $$, because I'd want 6.6 or ergo2. That's good to know about the men's last. I couldn't find any men's to try on in my size in those shoes to compare.
Yea... thx for posting this. I was just having one last Sidi shoe store try on as another size order came, and I'm down to the wire on my return on the first batch. Ugh, what to do...

I think I can relate to what you are saying about the widest part of the ball of the foot. I keep going back to my right foot on the inside is hitting something wrong (that's my smaller foot, larger lefty was ok). It's like the flare of the shoe there, and my foot, are off. I just don't get it. I do think also that the 6.6 IS more form fitted, mens too.

I have a couple Specialized high end mtb shoes in my store in 39s and those are TOO small. Even though they were suppose to be my size by the chart. I might try an exchange to a 40 or 41.

I've pondered having a higher end shoe store try and stretch part of the last. But, something about leaving the carbon sole shoe with a non-bike-shop shoe store scares me.