Kickers' T-Bars, up to size 8 (eur 42), bonkersly cheap:
h++p://www.ebay.co.uk/itm/Kickers-PERF-T-PATL-Womens-T-Bar-Shoes-White-/221258941525?pt=UK_Women_s_Shoes&var=&hash=item338 40f8455

the finish is glossier than the pic shows.
already got mine