Maybe.

But my 700x32 Schwalbe Marathon Pluses were narrower than my 700x32 Conti Gatorskins, both of which were narrower than my 700x32 Conti Top Contact II's.

So I tried 700x35 Schwalbe Marathon Plus Tours which have the same "unflattable" construction plus a more aggressive tread. These 700 x35 Schwalbes are about the same size as my 700x32 Conti Top Contacts.


Short version.... IME Schwalbes really are the size Schwalbe says they are.