I'm looking for some flat comfortable shoes for work to go with straight leg smart trousers (this sort of style .www.marksandspencer.com/checked-straight-leg-trousers/p/p22490954?image=SD_01_T59_5412C_T4_X_EC_90&color=GREYMIX&prevPage=plp&pdpredirect) Struggling to find something so hoping for some ideas. I already have mary Jane style and flat boots, the boots may be ok but mary janes need replacing.