Provide the following measurements in the box below: Waist = Measure waist where chaps will be worn. Upper Thigh = Measure around the biggest part of your thigh. Mid Thigh = Measure halfway between thigh and knee. Knee = Measure around the knee with knee slightly bent. Calf = Measure around the largest part of the calf. Outseam = Measure from waist to floor. Inseam = From crotch to floor.