CHEST: Measure the chest circumference at the fullest point keeping the tape horizontal around the body
WAIST: Measure the waist circumference at the smallest part of the waist, often at or above the belly button, keeping the tape horizontal around the body
HIP: Measure the hip circumference at the fullest part of the seat, keeping the tape horizontal around the body
SLEEVE LENGTH: Measure the distance from the prominent bone at centre back neck, across the shoulder, over the bent elbow to the centre of the wrist bone