NikeMen's NSW PANT OH FLC CLUB Pants

Do side pockets have zippers?

How narrow are the pant legs, especially at the bottom to go over a nylon leg cast? Thanks

I'm 5'5 125 pounds and i want the pants to be loose fit for my legs. my waist is 26. should i wear s or m

It says "button closure". i see no button in pic. is there a functional fly? i wear a back brace over the top of sweats and must have a fly opening.