Ecco sandal in great condition

I bought these sandal in July for my vacation but they are too tight for me. They are 37 in European size which is equivalent to 6.5 US size. I only wore them for about 3 hours. I don’t have box for these shoes because I already threw it away during the house cleanup https://click.email.ecco.com/?qs=f8f471024b00bab4c205cd608cd7efa8d5ff37acffb956890a452e540eccd53afec3416aa1f198cc886fff9def0dd5cb350955868d6bc3dc8f16cf48448cfdd5e9dcdd40ed967032