Men's Original 874 Straight Leg Work Pants

How do I find my size

How do i measure my size? i ordered a 30x30 but they were a bit tight around my butt area and i just wanted to know how to measure my size

Can I return these even if I have taken off the tags?

How would I be able to cancel my order once it processed already? I accidentally selected the wrong payment method and it won’t let me cancel the orde