Therafirm Men's Trouser Socks Size Chart (15-20 / 20-30 / 30-40 mmHg)

Therafirm men's trouser socks 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
Ankle Circumference	18–23 cm7"–9"	23–28 cm9"–11"	25–36 cm10"–14"	28–38 cm11"–15"
Calf Circumference	27–38 cm10.5"–15"	28–42 cm11"–16.5"	31–43 cm12"–17"	33–48 cm13"–19"
Length	28–36 cm11"–14"	31–38 cm12"–15"	33–41 cm13"–16"	36–46 cm14"–18"

S

Ankle Circumference 18–23 cm7"–9"

Calf Circumference 27–38 cm10.5"–15"

Length 28–36 cm11"–14"

M

Ankle Circumference 23–28 cm9"–11"

Calf Circumference 28–42 cm11"–16.5"

Length 31–38 cm12"–15"

L

Ankle Circumference 25–36 cm10"–14"

Calf Circumference 31–43 cm12"–17"

Length 33–41 cm13"–16"

XL

Ankle Circumference 28–38 cm11"–15"

Calf Circumference 33–48 cm13"–19"

Length 36–46 cm14"–18"

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: Therafirm men's trouser 15-20, 20-30, 30-40. Step-by-step Measuring Guide →

Frequently Asked Questions

What makes Therafirm Men's Support 15-20 mmHg Knee High Compression Socks different?

Therafirm Men's Support 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. These are classic ribbed dress socks for everyday wear. Soft comfort band is non-restrictive while staying in place all day.

What does 15-20 mmHg mean, and what does it help with?

15-20 mmHg is moderate graduated compression: pressure is greatest at the ankle and decreases up the leg. In these men's ribbed dress socks, it may help relieve tired, achy legs and mild swelling while graduated compression helps improve circulation.

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.

How does the top band help with fit?

The band is designed to help keep the garment positioned during wear. Choose the correct size and apply the stocking evenly to avoid bunching or rolling.

How should I wash and care for this garment?

Hand wash in cool or lukewarm water with mild detergent. Gently squeeze out water rather than wringing the fabric. Lay flat, line dry or drip dry; avoid bleach, ironing and excessive heat. These instructions follow Therafirm’s garment-care guidance.