Nurses who want compression up the full calf, not just at the foot, need a knee-high with 20-30 mmHg graduated support. Apolla's Endurance is the one built for it, with patented arch and ankle support that most knee-highs leave out, and wide sizing cut for calves that standard compression brands cannot fit. Go knee-high when the calf coverage is the actual reason you are shopping.
Apolla stands behind more than 7,300 five-star reviews across the lineup, and the Endurance ships with a 30-day pain-free trial.
Endurance is Apolla's only true knee-high, built for nurses who want support up the calf instead of stopping at the ankle.
The Endurance carries 20-30 mmHg graduated compression, the same level as every Apolla nurse sock. It sits firmest at the ankle and eases its pressure up the leg, so a knee-high carries that support across the full calf; the nurse buying guide goes deeper on how much compression long shifts call for.
WIDE comes in Medium, Large and Extra Large, sized for calves that standard compression brands cannot fit. The extra room lets the top sit smooth and comfortable on a fuller calf right through the end of a shift.
It is $52, HSA/FSA eligible, and covered by a 30-day pain-free trial.
Go with the knee-high when coverage up the calf is the reason you are shopping.
Shop Endurance
If the foot is where you want help and crew height suits your shoes, the Performance crew is the lighter call.
Shop Performance
The Infinite mid-calf sits between crew and knee-high when full height feels like more than you need.
Shop Infinite
Apolla's tallest sock. The patented support sits at the arch and ankle, the graduated compression climbs the full calf, and the top stays put in WIDE or regular.
Shop Endurance
The familiar-height pick. You get the patented arch support at the foot without the taller calf coverage.
Shop Performance
More coverage than a crew sock, shorter than the Endurance. Pick it when a knee-high runs warm under scrub pants and a crew does not reach where your legs feel it.
Shop InfiniteStandard knee-highs compress the calf and nothing else. The Endurance carries patented arch and ankle support under that compression, 20-30 mmHg graduated from ankle to knee across the whole size range, WIDE M, L, and XL when the calf needs the room, and no seam across the toes. Check a roundup pick against that shortlist before you buy it.
Perk F. compared the Endurance knee-high in WIDE Large against knee-highs bought from other companies and wrote the Apolla pair was "vastly superior" and that "only the Apolla socks fit with a very comfortable and secure feeling."
Kassi wrote that these socks "actually reach the tops of my calves and don't pinch at the top", which is the fit most nurses are checking for in a knee-high.
Cared for properly, an Endurance pair gives 6 to 9 months of effective wear, and its wicking is part of the yarn, so a dry feel does not wash out along the way.
Size by your shoe size on the size chart. If a knee-high you already own digs in or leaves a deep ring where your calf is widest by the end of a shift, order your same size in WIDE. Judge it late in the shift, not when it begins.
No seam crosses the toes, and the front is cut to take bunions and broad feet, which you notice late in a shift. The yarn is antimicrobial.
The Endurance comes in black only, at $52 for every size, so the knee-high reads as a plain black sock on rounds or behind the station desk, whatever your work shoe is.
Weighing knee-high against the rest of the nurse lineup, or getting ready for travel nursing? These guides cover both.
Start with the Endurance for knee-high coverage, check sizing, or browse the full nurse range.
Yes. A 20-30 mmHg knee-high gives nurses graduated support across the full calf, not only the foot, which helps on long shifts spent standing and moving. Apolla's Endurance is the one to choose. It is the brand's only knee-high, with patented arch and ankle support and wide sizing; the nurse buying guide covers the APMA Seal of Acceptance.
Knee-high when calf coverage is the goal; crew when a familiar height that fits your work shoe is. Knee-high socks like the Endurance cover the full calf. Crew socks like the Performance cover the ankle and put the support at the arch. Both carry 20-30 mmHg compression, so pick by height, then confirm your size on the size chart.
Some do. Many standard-width knee-highs from other brands can pinch or slide at the calf, which is why the Endurance comes in WIDE sizes. Size by your shoe size on the size chart, and choose WIDE if a knee-high you already own leaves a deep ring at the widest part of your calf late in a shift. Our wide-calf nurse guide covers the WIDE choice at both heights. The right calf fit is what keeps a knee-high in place across a full shift.
S, M, L, and XL, plus WIDE M, L, and XL, all at $52. Pick the size that matches your shoe size on the size chart, and choose WIDE in that same size if knee-highs you already own leave a deep ring at the calf by shift's end. It is HSA/FSA eligible with no prescription required, so pre-tax account dollars can pay for it, and the Endurance product page carries the details.
Nurses who want compression up the full calf should choose the Apolla Endurance Knee-High. It uses 20-30 mmHg graduated compression with patented support at the arch and ankle, and comes in WIDE sizing for fuller calves, running from toe to knee. Choose a crew sock like the Performance instead when you want arch support at a familiar height. It is $52 and HSA/FSA eligible.
Start with the Endurance for full-calf coverage. Drop to a crew or mid-calf sock only if shoe fit or height preference points that way.
© 2026 Apolla Performance Wear. US Patent 10,076,436
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