Of course, the size should be indicated on the clothing, but we all know that different manufacturers have different ideas about sizes. Fortunately, we can check pants and jeans without putting them on. Simply wrap the waistband of buttoned jeans around your neck, and if the ends meet, they will fit you. It’s believed that a person’s neck girth is equal to half of their waist girth, and the wrist is half the neck’s girth.