These Levi's Have A Blank Red Tab On The Back Pocket. As Per The Levi's Website:
"Every now and then, you’ll find a blank red Tab: a red Tab with nothing but the trademark symbol on it.
Though concerned customers have raised the blank red Tab as a red flag for a knockoff, rest assured, these are authentic Levi’s® and that is a fully intentional blank tab"
Measurements
Waist 80cm
Rise 25cm
Inseam 74cm