JOBST Athletic Knee High Size Chart

Sizing for JOBST Activa CoolMax knee-length athletic socks — unisex fit. Toggle inches/cm and tap a measurement to highlight your size from JOBST's official sizing data. Use the built-in Find-my-size calculator to get a recommendation from your measurements.

JOBST Athletic Knee High Size Chart

Activa CoolMax · knee-length athletic — unisex

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
Calf Circumference (cC)	29-38 cm11¼-15	30-42 cm12-16½	32-46 cm12½-18	34-50 cm13½-19½
Ankle Circumference (cB)	18-22 cm7-8¾	22-25 cm8¾-10	25-29 cm10-11½	29-33 cm11½-13

Calf Circumference (cC) 29-38 cm11¼-15

Ankle Circumference (cB) 18-22 cm7-8¾

Calf Circumference (cC) 30-42 cm12-16½

Ankle Circumference (cB) 22-25 cm8¾-10

Calf Circumference (cC) 32-46 cm12½-18

Ankle Circumference (cB) 25-29 cm10-11½

Calf Circumference (cC) 34-50 cm13½-19½

Ankle Circumference (cB) 29-33 cm11½-13

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: Activa CoolMax · knee-length athletic — unisex. Step-by-step Measuring Guide →

Shop JOBST → All JOBST size charts How to measure All brands

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