 Height Dressed without shoes, measure standing next to a wall. |  Chest Dressed in a T-shirt, you should measure with a measuring tape around your chest just below your armpits. |  Waist Dressed in briefs or with trousers undone and lowered. Top raised, measuring tape where you usually have the waistband of your trousers. If you are measuring for a one-piece suit, be sure to measure where you have your biggest measurement, perhaps around the stomach. |  Inside leg Dressed in trousers but without shoes, measure standing next to a wall. |