I need a good arch support and these work well.  they are very light, made of leather instead of the popular mesh. I did put a soft fabric arch insert in to add extra support and padding.  they have toe room, the heel  doesn't slide and the size is true.  this is 'my 3rd pair of Avia's-the other 2 were the mesh-but i like the fit of this brand and prefer the leather to protect against things that spill in this profession. ordered on sunday, arrived on tuesday !