Size Guide How to Measure INCH CM This garment is designed to be fitted. If you are in between sizes we suggest to size up. SIZING CHART XS S M L XL 2X 3X BODY LENGTH FROM HPS 27.5 28.5 29.5 30.5 31.5 32.5 33.5 CHEST WIDTH 1” BELOW ARMHOLE 20.5 21 23 24.5 26.5 27.5 28.5 SLEEVE LENGTH FROM CENTER BACK TO HEM 34.5 35.5 36.5 37.5 38.5 39.5 40.5 If you anticipate that CORE LONGSLEEVE - WHITE may not fit as expected, please refer to our return policy to ensure you're order is valid to exchange. Body Length from HPS (High Point Shoulder)Measure from the highest point of the shoulder (HPS) down to where the hem of the garment will fall on the body.This is a straight vertical measurement.Chest Width 1” Below ArmholeMeasure across the chest, 1 inch below the armhole.Start and end the measurement at the point where the sleeve joins the body of the garment.Ensure the tape measure is level and covers the fullest part of the chest.Sleeve Length from Center Back to HemMeasure from the center of the back of your neck, across your shoulder, and down your arm to the hem of the sleeve.This measurement determines the length of the sleeve.The sleeve length measurements in the chart are specific lengths in inchesWhen selecting a size, ensure that each measurement is comfortable for you. Longsleeves are typically worn with a bit of extra room for comfort and ease of movement, so keep that in mind when choosing your size. The measurements in the chart refer to the garment's dimensions, so select a size that allows for your preferred fit. Report an issue.