The Toronto Eaton Centre (corporately styled as the CF Toronto Eaton Centre since September 2015, and commonly referred to simply as the Eaton Centre) is a shopping mall and office complex in Downtown Toronto, Ontario, Canada. It is owned and managed by Cadillac Fairview (CF).
Beside the store tessky mentioned which is probably your best bet, you may want to check out La Vie en Rose. If you are downtown, it is located at the Eaton Centre. If that doesn't work La Senza I think sells them as well. ALso you might want to try H & M. All the stores mentioned here you will find at the Eaton Centre.