Excellent vintage condition. 
Light blue cotton chambray denim. 
Exposed button fly. 
Lace up back waist. 
70s does 40s style.
Best for Modern 00
23”-24” waist
12” rise
33” hip right below bottom button
34-35” hips 1” below bottom button
11” across upper thigh
34” inseam
10.5” Leg opening