Size info2A(narrow)=N, B(medium)=M, C(wide)=W, D(extra wide)=WW.Details & careElevate any outfit with this soft faux leather knee-high boot featuring an easy side-zip closure and stacked block heel.3 1/2" heel; 1 1/4" platform14 1/2" shaft; 16" calf circumferenceInset side-zip closureSynthetic upper/textile and synthetic lining/synthetic soleImportedItem #10452238Helpful info:Fit guides