Please look at the pictures - Some fading and missing a button on the back pocket

Vintage 1960's Vietnam US Navy Issued Denim Chambray blue Work Pants - lightweight Jeans (?)

Measurements: 

Waist - 32" Inseam - 31"

R. Kozak enlisted in the United States Marine Corps and served from 1961 to 1965 when he was honorably discharged. (injured?)