Core-Spun by Therafirm Knee High Socks Size Chart

Core-Spun knee high socks (solids, patterns, cushioned) — 10-15 / 15-20 / 20-30 / 30-40 mmHg

Tap any measurement below to see your full size details.

👆 Tap a value in the table to highlight your size.

Circumference

Measure	S	M	L	XL	XXL
Ankle Circumference	17–22 cm6.5"–8.5"	21–26 cm8"–10"	23–29 cm9"–11.5"	28–38 cm11"–15"	33–43 cm13"–17"
Calf Circumference	28–42 cm11"–16.5"	31–45 cm12"–17.5"	33–49 cm13"–19"	43–58 cm17"–23"	47–65 cm18.5"–25.5"

S

Ankle Circumference 17–22 cm6.5"–8.5"

Calf Circumference 28–42 cm11"–16.5"

M

Ankle Circumference 21–26 cm8"–10"

Calf Circumference 31–45 cm12"–17.5"

L

Ankle Circumference 23–29 cm9"–11.5"

Calf Circumference 33–49 cm13"–19"

XL

Ankle Circumference 28–38 cm11"–15"

Calf Circumference 43–58 cm17"–23"

XXL

Ankle Circumference 33–43 cm13"–17"

Calf Circumference 47–65 cm18.5"–25.5"

Length

Measure	Short	Regular
Floor to bend of knee	41 or less cm16" or less	over 41 cmGreater than 16"

Short

Floor to bend of knee 41 or less cm16" or less

Regular

Floor to bend of knee over 41 cmGreater than 16"

Fits calf up to 25.5".
Catalog has no separate Cushioned chart; Cushioned knee highs use this chart.
Compression is the mean compression for an average ankle size.

Need help choosing your size? Our Certified Fitters are standing by. Mon–Fri 8am–7pm CST

📞 1-800-504-7315

Between sizes? Size down for a firmer therapeutic fit, or up for easier donning. It should feel snug — like a firm, even hug.

Wrong size? No problem. Easy exchanges — we’ll get you into the right fit.

Measure first thing in the morning, before swelling, with a soft tape measure held level. Applies to: Core-Spun knee highs, Core-Spun Patterns, Core-Spun Cushioned. Step-by-step Measuring Guide →

Frequently Asked Questions

What makes Therafirm Core-Spun 10-15 mmHg Knee High Compression Socks – Closed Toe different?

Therafirm Core-Spun 10-15 mmHg Knee High Compression Socks – Closed Toe provide mild 10-15 mmHg graduated compression that is greatest at the ankle and decreases up the leg. Comfort designed top is non-restrictive while staying in place all day. High-tech fibers wick away moisture.

What does 10-15 mmHg mean, and what does it help with?

10-15 mmHg is mild graduated compression: pressure is greatest at the ankle and decreases up the leg. In these knee high socks, it offers light, everyday support that may help relieve tired, achy legs and light swelling for people who sit or stand for long periods.

How do I know I’m ordering the right size?

Measure your ankle and widest calf area and check the garment length if the size chart requires it. Compare the results with the size chart for this exact product before choosing a variant. If you fall between sizes, use the brand’s fitting guidance rather than guessing.

What do the reinforced heel and toe add?

Therafirm reinforces the heel and toe of these socks, so the areas that take the most wear are more durable and hold up to everyday wear and tear.

How should I wash and care for this garment?

Therafirm lists this style as machine washable. Its general garment-care guide recommends hand washing in cool or lukewarm water with a mild detergent to help protect the fibers. Do not bleach, wring or iron; lay flat, line dry or drip dry away from excessive heat. Check the garment label for any style-specific directions.

Overall rating: 4.656522 / 5 from 230 reviews.

AI Generated Review Summary

Core-Spun by Therafirm Support Socks offer a blend of comfort, support, and value. They are designed with ultra-stretchy yarns for easy wear and high-tech fibers to wick away moisture, ensuring a dry and hygienic environment. The socks are praised for their good fit, smooth material, and ability to improve circulation and relieve tired legs.

Summary topics

Support (8%): It was noted by customers that the support socks provided by Perfect by Perfect are very good and comfortable.
Value (6%): Customers raved about the great value of the product, which was mentioned multiple times in the reviews.
Fit (17%): A significant number of customers brought up that the product has a good fit and is very comfortable.
Feel (4%): It was highlighted by customers that the socks feel great and keep their legs feeling better than they do without.
Material (3%): Customers appreciated the smooth and tough material that provides support without constricting one's leg in these socks.

Review topics: ["shipping","feel","fit","problems","support","value","material","price","quality","husband","size","socks","order","stockings","pair","legs","compression","works","band","wear","iâ\u20AC:tm","top","tasks","swelling","core spun"].

Review highlights

"Very good product, good fit and support." — Jerry R.
"The support socks were easier to get on and very comfortable." — Peggy
"great price great value" — P A.

Reviews

Compression stockings

"I never received them, can you tell me what happened to my order?"

— Elizabeth K. (5/5)

Great

"Great"

— Nancy H. (5/5)

The stockings are too long.

"The stockings are too long. I ordered a XXL because he needed to width. Just because you need the width does not mean your leg is longer."

— Karen S. (5/5)

WHO IS PATRICIA?? CORRECT NAME,

"WHO IS PATRICIA?? CORRECT NAME, MY NAME IS ALBERT PEDREGON DELIVERY IS CORRECT. REFER TO INFORMATION ON ORDER AND DELETE " PATRICIA PEDREGON FROM PROFILE AND ANY EMAILS THANK YOU"

— Patricia P. (5/5)