Between Sizes? How to Pick the Right Compression Arm Sleeve (and Keep It From Slipping)

If your measurements land between two sizes, do not guess, and do not size down just to get a tighter grip. Measure again in the morning, start with your wrist, look at the whole picture of your measurements and arm length, and send us your numbers for a free fit check. Most slipping comes from size, length, how the sleeve goes on, or a sleeve that is worn out, not from needing it to be tighter.

Why being between sizes is so common

Arms are not one measurement. A sleeve has to fit at your wrist, your forearm, and your upper arm, and it is normal for those three numbers to point to different sizes. Our size ranges overlap on purpose. For example, a 19 cm wrist falls at the top of the Small range and also inside the Medium range. Landing in an overlap does not mean you did something wrong. It means you have a real fit question, and it deserves a real answer rather than a coin flip.

If you wear a Medium in another brand, please do not assume that carries over. Compression garment sizing varies between brands, so measure even if you think you know your size.

Step 1: Measure again, the right way

• Measure in the morning. Swelling is usually lowest then, which gives you the most reliable numbers.
• Use centimeters for the best precision, and a soft tape measure.
• Relax your arm with your elbow slightly bent, and pull the tape to gentle tension. Not too tight, not too loose.
• Wrist: measure over the small bone on the outside of your wrist.
• Forearm: measure the fullest part of your forearm.
• Bicep: measure the fullest part of your upper arm, halfway between your elbow and armpit. If you have extra soft tissue there, gather it gently and hold the tape slightly tighter so it goes all the way around evenly.
• Arm length: measure from about two finger widths below your armpit down to your wrist bone. Under 43 cm is a Short sleeve, and over 43 cm is a Long.

If you can, ask a friend, a fitter, or your therapist to take the measurements. It is much easier to be accurate when you are not holding the tape with the arm you are measuring.

Step 2: Start with your wrist, then look at the whole picture

Write your wrist, forearm, and bicep measurements down, then check each one against the current size chart. Then read them together, with your wrist first.

Your wrist often matters most. A compression sleeve is firmest at the wrist, and your wrist measurement determines whether the sleeve is in the right range to deliver the compression level your therapist recommended. Your forearm and bicep still matter for comfort and fit, but the wrist leads.

• Your measurements are not a vote. If your wrist measures Small and your forearm and bicep both measure Large, we would not automatically choose the Large just because two of the three say so. We look at the whole picture and your precise measurements, including how close each number is to the edge of a size range.
• Exact numbers help. Write down your measurements as precisely as you can, rather than rounding them to a size in your head.
• Your numbers point to different sizes? This is the time to reach out. Send us your wrist, forearm, bicep, and arm length, and your compression level if you know it, and a real person on our team will help you choose.
• Your arm size changes during the day or week? Measure on a typical day, and ask your therapist which measurement to go by. If your swelling changes over time, remeasure when you buy a new garment.

Step 3: Do not size down to fix slipping

It is tempting to think a smaller size will hold better. But a sleeve that is too loose will not compress effectively, and one that is too tight can be uncomfortable or cause problems, such as pinching, rolling at the top, or tingling in your fingers. The goal is a firm, even hug from wrist to upper arm, not the tightest size you can squeeze into.

Other reasons a sleeve slips (and what helps)

• The length is off. A sleeve that is too long can fold or roll, and one that is too short can leave a gap. Check your arm length against the Short and Long guide.
• It went on with a fold or wrinkle. Smooth the sleeve up your arm so it lies flat, with no twists, and so the top band sits flat against your skin.
• Your skin is damp or freshly moisturized. Put your sleeve on over clean, dry skin.
• It is worn out. Compression garments lose their snugness with daily wear and washing, usually within four to six months. If your sleeve feels looser than it used to, or slides down, it may simply be time for a fresh one.
• Care. Machine wash on the delicate cycle in cool water with an additive-free detergent, and machine dry on low. Proper care helps a garment keep its shape.

Every LympheDIVAs sleeve includes our DIVA Diamond Band, a latex-free, silicone-free gripper on the top cuff that helps keep the sleeve in place and prevents it from rolling down.

What if I order and it is not quite right?

You are not stuck. Returns and exchanges are available within 60 days, so if you ordered your best guess and it is not right, we can help you exchange it for a better size. You can start at our returns and exchanges page, or write to us at info@lymphedivas.com before you order for a free fit check.

Frequently asked questions

Should I size up or down if I am between sizes?

Neither by default. Your wrist measurement often matters most, because it determines whether the sleeve is in the right range for your compression level, so we look at the whole picture and your exact numbers rather than the size most measurements point to. If your numbers split between sizes, send them to us for a fit check.

My wrist is a Small but my forearm and bicep are a Large. Which size do I choose?

Not automatically the Large. The size that most measurements point to is not always the right one. Send us your precise wrist, forearm, and bicep measurements, your arm length, and your compression level, and we will look at the full picture with you.

Will a smaller size stop my sleeve from slipping?

Not necessarily. Slipping is often about length, how the sleeve goes on, or a worn-out garment. A sleeve that is too tight can cause new problems, so check the other causes first.

How often should I remeasure?

Each time you buy a new garment, usually every four to six months, and any time your swelling changes. Measure at the same time of day, ideally the morning.

Does the size chart tell me my compression level?

No. The size chart helps you choose a size only. Your compression level should be recommended by your doctor or a certified lymphedema therapist.

This article is for general education and is not medical advice. Please follow the guidance of your physician or certified lymphedema therapist about your compression level and fit. Sizes and measurements reflect our size chart at the time of writing, so please check the current chart before ordering.

Written by the LympheDIVAs team. We have made beautiful, medical-grade compression for people living with lymphedema since 2006.