SKU: 19617

Therafirm Core-Spun Unisex Thigh High 30-40 mmHg

$86.40

$86.40 $108.00

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Color: Black

Black

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Description

Therafirm Core-Spun 30-40 mmHg Thigh High — Reinforced Comfort for Daily Wear

Therafirm Core-Spun 30-40 mmHg Thigh High Compression Socks – Closed Toe provide extra firm 30-40 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. Soft, ultra-stretchy fibers make these full-length thigh high compression socks easier to put on and more comfortable to wear. It also features fashionable, modern everyday colors and breathable latex-free fibers.

Key Features

Graduated Compression: Lab tested gradient compression that is greatest at the ankle, and decreases up the leg.
Moisture Management: High-tech fibers wick away moisture.
Stretch-Knit Design: Soft, ultra-stretchy fibers make these full-length thigh high compression socks easier to put on and more comfortable to wear.
Stay-Up Comfort: Comfort designed top is non-restrictive while staying in place all day.
Reinforced Foot Construction: Reinforced, comfortable heel and toe areas are more durable and hold up to everyday wear and tear.
Everyday Style: Designed to look and feel just like everyday, high quality, comfortable socks, not medical stockings.
Color Options: Fashionable and modern everyday colors.
Latex-Free Materials: Breathable Latex-Free fibers.

Medical Benefits

Stretch-Knit Comfort: Ultra-stretchy yarns make these socks easier to put on.
Targeted Support: Gentle compression squeeze helps to support muscles and tendons.
Stay-Up Top: Comfort designed top ensures your socks stay in place all day, without being restricting or uncomfortable.
Heel and Foot Construction: Reinforced heel and toe areas are more durable and hold up to everyday wear and tear.
Circulation Support: Gradient compression encourages blood flow and circulation and energizes feet and legs.
Drier, Fresher Feel: Moisture wicking properties provide a drier and more hygienic sock environment.

Best Used For

Tired, Achy Legs: May help relieve heavy, tired, achy legs.
Edema and Lymphedema: Often recommended by doctors for moderate edema, swelling or lymphedema. Typically worn under a doctor’s direction.
Advanced Varicose Veins: Often recommended by doctors for advanced varicose veins and chronic venous insufficiency. Talk to your doctor.
After Vein Procedures: Often recommended by doctors after vein stripping or sclerotherapy. Follow your doctor’s direction.
Long Workdays: For teachers, nurses, hair stylists, flight attendants, security guards, construction workers and anyone who sits or stands for long periods.
Muscle Fatigue: May help legs recover from muscle fatigue after a long day.

Product Specifications

Brand: Therafirm by Thuasne
Product Series: Core-Spun by Therafirm
Compression Level: 30-40 mmHg (Extra Firm)
Style: Thigh High
Toe Style: Closed Toe
Gender: Unisex
Fabric Content: Nylon, Lycra, Polyester
Construction: High Stretch; Reinforced heel and toe for durability; Moisture-managing knit

Browse by Category: Shop All Therafirm | Women's Therafirm 30-40 mmHg | Men's Therafirm 30-40 mmHg | Closed Toe Compression

Indications & Contraindications

Do not use compression stockings if the patient has any of the following conditions: severe arterial insufficiency, uncontrolled congestive heart failure, skin infections, red or sensitive skin, hardening of the skin or untreated leg ulcers. Consult physician before application for patients with: impaired sensitivity of the limb, sensitivity to the garment material, or any circulatory disorders. If you have or are at risk of DVT, use compression only as directed by your physician. Typically worn under a doctor's direction.

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Core-Spun by Therafirm Thigh High Socks Size Chart

Core-Spun thigh high socks

Tap any measurement below to see your full size details.

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

Step 1Circumference

Find your size from your measurements in this table.

Measure	Small	Medium	Large	X-Large	2X-Large	3X-Large
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"	36–48 cm14"–19"
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"	52–70 cm20.5"–27.5"
Thigh Circumference	40–54 cm15.5"–21.5"	45–65 cm17.5"–25.5"	55–75 cm21.5"–29.5"	65–85 cm25.5"–33.5"	70–94 cm27.5"–37"	75–100 cm29.5"–39.5"

Small

Ankle Circumference 17–22 cm6.5"–8.5"

Calf Circumference 28–42 cm11"–16.5"

Thigh Circumference 40–54 cm15.5"–21.5"

Medium

Ankle Circumference 21–26 cm8"–10"

Calf Circumference 31–45 cm12"–17.5"

Thigh Circumference 45–65 cm17.5"–25.5"

Large

Ankle Circumference 23–29 cm9"–11.5"

Calf Circumference 33–49 cm13"–19"

Thigh Circumference 55–75 cm21.5"–29.5"

X-Large

Ankle Circumference 28–38 cm11"–15"

Calf Circumference 43–58 cm17"–23"

Thigh Circumference 65–85 cm25.5"–33.5"

2X-Large

Ankle Circumference 33–43 cm13"–17"

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

Thigh Circumference 70–94 cm27.5"–37"

3X-Large

Ankle Circumference 36–48 cm14"–19"

Calf Circumference 52–70 cm20.5"–27.5"

Thigh Circumference 75–100 cm29.5"–39.5"

Step 2Length

Then measure your length to choose Short or Long. Your size is your Step 1 size in that length.

Measure	Short	Long
Floor to gluteal fold	72.5 or less cm28.5" or less	over 72.5 cmGreater than 28.5"

Short

Floor to gluteal fold 72.5 or less cm28.5" or less

Long

Floor to gluteal fold over 72.5 cmGreater than 28.5"

Fits thigh up to 39.5".
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 thigh highs. Step-by-step Measuring Guide →

Frequently Asked Questions

What makes Therafirm Core-Spun 30-40 mmHg Thigh High Compression Socks – Closed Toe different?

Therafirm Core-Spun 30-40 mmHg Thigh High Compression Socks – Closed Toe provide extra firm 30-40 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 30-40 mmHg mean, and what does it help with?

30-40 mmHg is extra firm graduated compression: pressure is greatest at the ankle and decreases up the leg. In these thigh high socks, it is often recommended by doctors for advanced varicose veins, chronic venous insufficiency and moderate edema or lymphedema. 30-40 mmHg is typically worn under a doctor’s direction.

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

Measure your ankle, calf and thigh at the locations specified in the Therafirm sizing guide. Check the required leg length as well. 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.

How do I put these on and take them off?

Put the garment on when your legs are dry. Turn it inside out to the heel, guide your foot into place, and work the fabric gradually up the leg without pulling on the top band. Smooth out wrinkles; do not fold or roll the upper edge. To remove it, ease the fabric downward in stages. If gripping or applying the garment is difficult, consider donning and doffing aids, including application gloves and stocking donners.

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: 4.571429 / 5 from 7 reviews.

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Reviews

they work

"they work"

— John C. (5/5)

WILL NEVER BUY THESES AGAIN

"IT TOOK ME 2 HOURS TO GET 1 ON. I CAN'T GO THROUGH THAT. THAT WAS WITH A PT HELPING. DO NOT WANT ANY MORE. i HAD TO CUT THEM TO GET THEM OFF."

— Diane B. (3/5)

Works well after my leg

"Works well after my leg surgery."

— Tom D. (5/5)

good

"gooe"

— Guoqiang C. (5/5)

I gave this garment a

"I gave this garment a 4 star rating since the material loses compression a bit throughout the day, and the garment slips down around my ankles creating a band of material around my ankles which hurts after a few hours needing adjustment. Nice to wear a different color other than beige or black. A bit on the pricey side."

— Jennifer K. (4/5)