... reduced from £28.50.
From Sweatshop, in case anyone's interested: www.sweatshop.co.uk/catalogsearch/result/?q=bras
(Disclaimer: I have no links with this shop!)
They have a few 'models' very cheap: £1/£3/£8, only a few sizes available. If you use the 'click and collect' service (i.e. collect from a local store) it's free delivery.