Brand New cloth thong sandals 🩴🩴🩴

I just bought these for the summer. And my feet don't fit like they should. My toes are just on the line almost over the sandal and my heel just hangs over. These deff run smaller then a 10. My niece has my mother's new pair...same brand... they fit her perfect and she is a 9 in women's. Never worn them just tried them on. The stripes are shimmery