Compression sock purchase
"Very good service with a timely delivery. Will definitely recommend and order again."
SKU: 37512
Therafirm Core-Sport Unisex Knee High 15-20 mmHg
$41.20
$41.20
$51.50
Sale
HSA/FSA eligible for qualified customers.
Learn more
Calculating delivery...
Couldn't load pickup availability
Shipping: Standard $6.95 · FREE on orders of $99 or more. Details
Returns: Qualifying returns: 30 days · $6.85 return shipping per item. Exchanges up to 100 days. Details
- Fast Shipping
- Low Price Guarantee
- 100-Day Exchange
Description
Therafirm Core-Sport 15-20 mmHg Knee High — Targeted Arch Support for Active Days
Therafirm Core-Sport 15-20 mmHg Knee High Compression Socks provide moderate 15-20 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 sweat and other moisture. Super soft yarns are ultra-stretchy and conform to the leg comfortably without losing shape. It is climate comfortable for both hot and cold weather.
Key Features
Medical Benefits
Best Used For
Product Specifications
Indications & Contraindications
Core-Sport by Therafirm Size Chart
Core-Sport athletic socks 15-20 / 20-30 mmHg
Tap any measurement below to see your full size details.
Do not base your size on your shoe size. Medical compression garments require precise ankle and calf measurements to work correctly. Please use your exact measurements on the chart below to find your perfect fit.
👆 Tap a value in the table to highlight your size.
Circumference
| Measure | S | M | L | XL |
|---|---|---|---|---|
| Ankle Circumference | 17–22 cm6.5"–8.5" | 21–26 cm8"–10" | 23–29 cm9"–11.5" | 28–38 cm11"–15" |
| Calf Circumference | 28–42 cm11"–16.5" | 31–45 cm12"–17.5" | 33–49 cm13"–19" | 43–58 cm17"–23" |
| Length | 30–41 cm12"–16" | 33–43 cm13"–17" | 36–46 cm14"–18" | 38–51 cm15"–20" |
S
Ankle Circumference
17–22 cm6.5"–8.5"
Calf Circumference
28–42 cm11"–16.5"
Length
30–41 cm12"–16"
M
Ankle Circumference
21–26 cm8"–10"
Calf Circumference
31–45 cm12"–17.5"
Length
33–43 cm13"–17"
L
Ankle Circumference
23–29 cm9"–11.5"
Calf Circumference
33–49 cm13"–19"
Length
36–46 cm14"–18"
XL
Ankle Circumference
28–38 cm11"–15"
Calf Circumference
43–58 cm17"–23"
Length
38–51 cm15"–20"
- 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-Sport. Step-by-step Measuring Guide →
Measuring Guide for Sizing of Compression Stockings
Sizing
Measuring Guide
How to measure your legs for compression stockings, support socks, support hose, and gradient compression hosiery.
Where to Measure
- For knee-highs: measure around your ankle and calf. Then measure the distance from the floor to the back of your knee.
- For thigh-highs and pantyhose: measure around your ankle, calf, and upper thigh. Then measure the distance from the floor to your upper thigh (bottom of your buttocks).
An important measuring tip: take your measurements with a tape measure, as shown below. Sizing charts are located on every product’s “see details” page for your convenience. If you need further assistance, please call 1-800-504-7315 or Live Chat with us.
How to Properly Measure and Apply Compression Stockings
The Key Measurements
Ankle
Measure around the ankle at the narrowest point, generally above the ankle bone.
Calf
Measure around the calf muscle at the widest part.
Length
Measure from the floor to the bend behind the knee.
Thigh
Measure around the thigh approximately 3 inches below the gluteal fold (crease of the buttocks).
Thigh Length
Measure the distance from the bottom of your buttocks to the floor.
Sizes may differ between various brands of support stockings—each manufacturer has their own sizing chart. A medium in one brand may not be a medium in another, and some brands offer petite (shorter) lengths while others do not. Knowing your measurements will ensure you get compression hosiery that fits properly and comfortably. Sizing charts are located on every product’s “see details” page.
Please call 1-800-504-7315 or Live Chat if you need more help sizing.
Measured up? Find your exact size
Take your measurements straight to our interactive brand charts, or convert a size you already know into another brand.
Interactive size charts Size converter (switch brands)Frequently Asked Questions
What makes Therafirm Core-Sport 15-20 mmHg Knee High Compression Socks different?
What does 15-20 mmHg mean, and what does it help with?
How do I know I’m ordering the right size?
What does the arch compression do?
How should I wash and care for this garment?
Overall rating: 4.826087 / 5 from 23 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["fit","support","socks"].
Review highlights
Reviews
Works fine
"Works fine for casual tasks, could be better for bigger jobs."
Pay for what you get!
"Fantastic socks. Quite expensive, even with the 20% off! They are very comfortable and seem to wear and last well! I've been wearing these for a couple of years now, and I have all three colors. I wish they had these in skin color! I must have a dozen pairs!"
Great socks, but pricy!
"These are as fine of a pair of socks you will find! They are quite pricy, even with a 20% discount! They should also make them in skin color for summertime shorts season!"
Accomplish what they are supposed
"Accomplish what they are supposed to do for my edema afflicted legs. Stylish as well in the athletic sock design."
Sporty support
"Quality material. Don’t look stupid on."
Comfortable and nice style
"Comfortable and nice style"
The second pair that I
"The second pair that I have purchased, well made and helps keep the swelling down in my legs. I play golf a couple times weekly and they really do the job."
Perfect fit. Does the job
"Perfect fit. Does the job"
We love them for my
"We love them for my father. They are the easiest of all compression socks to get on."
