"999" of "new balance" that appeared in 1996.
The 5th generation of that historical part number is this "M990V5".
In addition, the updated model "990v5" has a Roman numeral "V" engraved on the heel to indicate the fifth generation.
This "990v5", which further enhances the "comfort" that is the essence of the series, is a pair that represents the current New Balance.
*Although it is listed as a kids item, it can be worn by adults as well.