Carhartt Men's Loose Fit Canvas Utility Work Pant

Button closure! What no zipper?

Do these pants have the loop on the right hip? Not the hammer loop on thr left thigh but a smaller loop that fits a ratchet?

How dark is the navy color? light, medium, very dark?

What is difference in 38x32 and 38w x 32l? why are sizes listed twice but like this?