Adidas ortholite sneakers

Bought new on Poshmark recently, worn once, too big for me. Small creases in the top front of the shoes and mild stains under soles and around the ankle area, but otherwise good condition. Very light and stylish. 7.5 US size but I think it would fit more like an 8.5 or even 9. For reference, I'm usually between 7.5 and 8 but 2 or even 3 fingers can fit in the gap behind.