Sleeve: Measure from the shoulder seam through the outer arm to the cuff/hem.
Neck: Measured horizontally across the neck.
Shoulder: Measure the shoulder at the back, from edge to edge with arms relaxed on both sides.
Length: Measure from the highest point of the shoulder seam to the bottom hem of the garment.
Chest: Measure around the body under the arms at the fullest part of the chest with your arms relaxed at both sides.