whatsizetobuy is an independent English-language fit guide. We answer one stubborn shopping question — does this model run big or small? — at the model and cut/line level, not with vague brand averages or a bare US↔EU chart.
Generic converters are everywhere. What shoppers still struggle to find is whether this last, toe box, or clothing cut runs long, short, narrow, or true to size. A Nike Dunk is not an Air Force 1. An Altra toe box is not a tapered Adidas lifestyle last. Our pages are built so you can open one model, see a clear verdict, a confidence badge, and a path into the converter or a brand comparison.
We label uncertainty on purpose. Most shoe rows are Verified or Partial after multi-source checks; clothes lean Partial with a growing Verified set. We never bulk-upgrade confidence to look trustworthy. Full rules: methodology.
whatsizetobuy is not affiliated with Nike, Adidas, or any shoe or clothing brand we write about. Brand names are used for identification and fit comparison only.
whatsizetobuy is operated as a small independent editorial project focused on fit data, converters, and honest confidence labels. We prioritize sourced corrections from readers and retailers over anonymous “I sized down” comments with no context.
Questions, chart conflicts, or partnership notes: contact (hello@whatsizetobuy.com). Privacy: privacy policy.
Some pages include Amazon (amazon.com) shopping links. As an Amazon Associate, we may earn from qualifying purchases at no extra cost to you. Affiliate links never change a fit verdict or confidence badge.