I'm not sure if it's a manufacturing defect but the last pair of Emericas fit perfectly, this shoe fits my left foot with no problem but it's so tight on the right that I've only worn it once. Now try stretching it and see if it can be used again. The odd thing is that the last shoe this happened to me was a pair of DCs that were too tight on the left and fitted perfectly on the right, so I suspect the quality assurance is getting worse and worse due to the pandemic issues.