For each garment, always, always go to the Item description, the “click here” is in the body of the description. There is the actual measurements for each size for that one garment.
LOGO Is a classic example where a medium for one item can be a totally different measurement, than a medium in another garment, and both are logo.
There are times when I can wear a medium and there are times where I have to get an extra large. I know my numbers and then I factor in whether the fabric is stretchy or not. This way you don’t have to worry about a size.
I know I cannot wear anything less than 42 inches for a bust measurement. I also know I need tops that are at least 30 inches long. So it actually makes no difference what size the garment is.
I never have to return clothes anymore because of size, I measured tops that I knew fit me very well and kept that number. Same for pants I know my inseam. The measurements are all there in the “click here”.
XL can be a range of measurements, and so can 1X.
When you go to the “click here” you can compare the measurements of those two sizes.