Getting compression stockings to fit properly starts with accurate measurements taken at the right time of day, choosing the correct compression level, and learning a specific technique to put them on. A poor fit doesn’t just feel uncomfortable; it can restrict blood flow or fail to provide the support you need. Here’s how to get it right from the start.
Measure in the Morning
Your legs swell throughout the day as gravity pulls fluid downward, so the best time to measure is first thing in the morning, right after getting out of bed. Measurements taken later in the day, when your legs are already puffy, will give you a larger size than you actually need. That means looser compression and less benefit once your swelling goes down overnight.
If you can’t measure in the morning, elevate your legs for 15 to 20 minutes beforehand to reduce swelling as much as possible. Use a flexible cloth measuring tape, not a metal one, and pull it snug against the skin without compressing the tissue.
Where to Measure for Each Stocking Length
The measurements you need depend on whether you’re buying knee-length or thigh-length stockings.
Knee-Length Stockings
You need two measurements. First, wrap the tape around the widest part of your calf, which is usually about halfway between your knee and ankle. Second, measure the length from the back of your heel up to the bend behind your knee. This length measurement ensures the stocking reaches the right spot without bunching or cutting into the crease of your knee.
Thigh-Length Stockings
These require three measurements. Measure your upper thigh circumference right at the buttock fold, your calf circumference at the widest point, and the full length from your heel to the buttock fold. Some brands also ask for an ankle circumference, taken at the narrowest part just above the ankle bone. Check the sizing chart for your specific brand, since sizing varies between manufacturers.
Write your numbers down and compare them to the manufacturer’s chart rather than guessing at a small, medium, or large. If you fall between two sizes, the right choice depends on your situation: sizing down gives firmer compression, while sizing up is more comfortable but slightly less effective.
Choosing the Right Compression Level
Compression is measured in millimeters of mercury (mmHg), the same unit used for blood pressure. Higher numbers mean tighter stockings. The four main ranges serve different purposes.
- 15 to 20 mmHg (mild): Suited for minor swelling, long flights, tired or achy legs, and people building tolerance to compression for the first time.
- 20 to 30 mmHg (moderate): The most commonly prescribed range. Used for moderate swelling, post-surgical recovery, and daily wear when you need real therapeutic benefit without excessive tightness.
- 30 to 40 mmHg (firm): Prescribed for more significant swelling, chronic venous problems, or cases where moderate compression hasn’t been enough. These are noticeably tighter and harder to put on.
- 40 to 50 mmHg and above (extra firm): Reserved for severe cases and only used after a clinical assessment. You won’t find these over the counter.
Stockings at 15 to 20 mmHg are widely available without a prescription. Anything at 20 mmHg or above is worth discussing with a healthcare provider to make sure the level matches your needs, especially if you have circulation problems.
How to Put Them On
Compression stockings are intentionally tight, which makes pulling them on like regular socks a losing battle. The trick is to turn the stocking inside out first, then work it up your leg in stages.
Reach one hand into the stocking and grab the heel pocket. With your other hand holding the top of the stocking, pull the heel back toward you so the entire stocking turns inside out down to the heel. You’ll end up with a short “cup” that fits over your foot and a ring of folded fabric sitting just above the heel.
Slip the foot portion over your toes and settle your heel firmly into the heel pocket. This step matters: if the heel pocket sits too high or too low, the stocking will twist and the compression won’t distribute evenly. Once your heel is seated, gradually unfold the fabric up your leg in small increments. Smooth it as you go rather than yanking it up all at once. Pulling aggressively stretches the fabric unevenly and can damage the elastic fibers over time.
For knee-length stockings, the top band should sit about two finger-widths below the bend of your knee. For thigh-length stockings, the top should reach the buttock fold without rolling down. If you notice the fabric bunching or folding anywhere, slide it back down to that spot and re-smooth before continuing upward.
Tools That Make Donning Easier
If you have limited grip strength, arthritis, or trouble bending down, several tools can help. Rubber donning gloves give you a better grip on the fabric so you can smooth and position the stocking without it slipping through your fingers. They’re inexpensive and make a noticeable difference even if your hand strength is fine.
For open-toe stockings, a silk foot slip is a simple sleeve you place over your foot before pulling the stocking on. The silk reduces friction dramatically, letting the stocking glide over your foot and ankle with much less effort. You pull the slip out through the open toe once the stocking is in place. Rigid frame donning aids hold the stocking open so you can step directly into it, which is especially helpful if bending to reach your feet is difficult.
How to Tell if the Fit Is Right
Properly fitted compression stockings feel snug but not painful. The pressure should be strongest at the ankle and gradually decrease as the stocking moves up your leg. You should be able to slide a finger under the top band without too much effort.
Several signs indicate the fit is wrong:
- Numbness or tingling in your toes or feet. That pins-and-needles sensation means too much pressure is cutting off circulation.
- Deep red marks or indentations on your skin after removing the stockings. Faint impressions are normal, but anything that looks like your skin has been squeezed hard suggests the stockings are too tight.
- Rolling or bunching during the day. This usually means the size is wrong or the stocking wasn’t positioned correctly. A rolled band creates a tourniquet effect, concentrating pressure in one spot instead of distributing it.
- Swelling above or below the stocking. This seems counterintuitive, but if blood flow is being restricted rather than supported, swelling can actually get worse in the areas the stocking doesn’t cover.
- Pain while wearing them. Compression should feel like firm, even pressure, not like something is digging into your leg.
If the stockings feel loose or slide down throughout the day, they’re likely too large or have lost their elasticity from wear.
Who Should Avoid Compression Stockings
Compression stockings are not safe for everyone. People with significantly reduced blood flow to their legs, a condition called peripheral artery disease, should not wear compression without medical clearance. The added external pressure on legs that already have compromised circulation can make things worse rather than better. If you have diabetes with nerve damage in your feet, skin infections on your legs, or heart failure, talk to your provider before using compression.
Caring for Your Stockings
Compression stockings lose their elasticity over time, and how you wash them affects how long they last. Wash them after every wear, either by hand or in a washing machine at 86 to 104°F (30 to 40°C). Use a mild color-safe detergent without optical brighteners. Never use fabric softener, which coats the elastic fibers and weakens them. Air dry the stockings flat rather than putting them in a dryer or hanging them by the top band, which stretches them out.
Most compression stockings maintain their therapeutic pressure for three to six months of daily wear. If you notice the stockings sliding down more easily or feeling looser than they used to, it’s time to replace them. Having two pairs and rotating them daily extends the life of each pair and ensures you always have a clean one ready.