Read Deuteronomy 29:5 Using Other Translations
And I have led you forty years in the wilderness: your clothes are not waxen old upon you, and thy shoe is not waxen old upon thy foot.
I have led you forty years in the wilderness. Your clothes have not worn out on you, and your sandals have not worn off your feet.
For forty years I led you through the wilderness, yet your clothes and sandals did not wear out.