Koprez vs One Compress vs KnitPair: $37.99, $39.98 and $98.00 for Two Sleeves

The price depends on which of the four pages you opened

On one day of reading, 13 September 2026, a single ankle sleeve cost $24.99 from OS1st, $29.99 from KnitPair, $39.99 from Koprez and $49.00 from One Compress, which does not say how many sleeves $49.00 buys. The FS6 is $5.00 under ours and it is the cheapest single sleeve in this table. A reader who wants one sleeve for one foot at the lowest published price should buy the OS1st FS6 and stop at this paragraph, because nothing further down changes that number.

OS1st also prints what the sleeve is made of, "24% LYCRA® Spandex, 76% Micro-Nylon", read from os1st.com on 13 September 2026. KnitPair does not publish fibre percentages. Koprez publishes "Premium nylon-spandex. Hypoallergenic, breathable, chemical-free." and One Compress publishes bamboo that draws "moisture away 4x better than cotton", both read 13 September 2026. One brand of four prints a split and the other three print an adjective.

Two sleeves is where the order changes. KnitPair charges $37.99 for a pair, Koprez's own buy one get one free page charges $39.98, OS1st charges $39.99 for a package its page says holds two sleeves, and One Compress charges $98.00, which is $49.00 twice, because no multi pack exists on either of its storefronts. The margin between us and the cheapest rival on that row is $1.99.

What the four brands publish, in one table

The two sleeve row is the only price row KnitPair wins, and it wins by $1.99. An ankle under 19 cm has no KnitPair size. Koprez and OS1st each publish six size labels and One Compress five, though what those labels measure sits inside image files that were not read (13 September 2026).

Koprez publishes four regular prices for one sleeve

koprez.com/products/foot-sleeve shows $39.99 for one sleeve, struck through from $79.99, badged "50% OFF", above a quantity tier table whose first line reads "1 Sleeve $39.99 Each", which puts two sleeves on that page at $69.98. Read 13 September 2026.

koprez.com/products/foot-sleeve-pair is priced at $79.99 for two, struck from $159.99, and its own tier table then reads "1 Pair $10 OFF $69.99 Each", contradicting the headline directly above it. The homepage tile shows $79.99 with no badge at all, which is the product page's struck-through price presented as the live one. Both read 13 September 2026.

offers.koprez.com/foot-sleeve-deg-bogo reads, verbatim, "Koprez® Foot Sleeves $39.98 ($159.98 value) Buy 1, get 1 free, 2 sleeves at $19.99 each. Regular price $79.99 per sleeve." That $39.98 is the cheapest published Koprez price for two sleeves anywhere we found. A second offer page, offers.koprez.com/Plantar-Fasciitis-Sleeves-EM, sells at $39.99 with "Save $40" under a banner reading "SPRING SALE: FREE Shipping + 50% OFF", read in September, both pages read 13 September 2026.

Count the regular prices Koprez publishes for a single sleeve across its own properties on that one day: $39.99, $79.99, $69.99 and $19.99. The spread between the highest and the lowest is $60.00, and which end of it you get depends on which advertisement you clicked.

One Compress sells a plural with no number in it

The product is called "Premium Anti-Fatigue Bamboo Footsleeves", plural, priced at $49.00 with a compare-at of $75.00 and a "SAVE 34%" badge across all fifteen variants, read 13 September 2026. There is no pack, pair or quantity option, and no number appears in the title, price area, variant options, description or size guide. The only brand-written "pair" on the page sits in a returns FAQ: "Send them back and we will get another pair sent out."

The brand runs a second storefront, onecompressbamboo.com, at the same $49.00, where the product page showed "Sold out" on 13 September 2026. An advertorial at onecompress.com/pages/purelivingdigest1215-1 states "That's just $69 for two pairs (normally $150)", read the same day, which is a third quantity vocabulary for one product: no count on the storefront, a pair in the returns FAQ, two pairs in the advertorial.

Returns: 100 days against 30, and one brand publishing both

KnitPair publishes a 100 day return window. Koprez publishes 30 days at koprez.com/pages/returns-and-exchange: "All products come with a 30-day trial, starting from the day the parcel is received." Returns must be shipped within 14 days of instructions, refunds are stated at 5 to 10 business days, and a $9.99 checkout add-on called the "Perfect Fit Guarantee™" buys a size exchange. OS1st publishes 30 days at os1st.com/pages/returns-and-exchanges. All read 13 September 2026.

One Compress publishes two windows for the same purchase, quoted in full so you can check them yourself.

• The product page on onecompress.com headlines a "60-Day No-Risk Guarantee" and states: "Try them for 60 days. If you don't feel less foot pain and improved mobility, send them back for a complete refund."
• The refund policy at onecompressbamboo.com/policies/refund-policy gives the window as "30 days of receiving your order" and requires items "returned in their original, unused and resalable condition".

Same brand, same day, both read 13 September 2026. The marketing offers sixty days for a product you have worn and the policy offers thirty for one you have not. We will not tell you which a support agent would honour. What is checkable is that the two pages disagree, and that the difference between them is a month.

The Black Friday advertisement that has run since March

Meta ad id 1034503363082045 started on 30 March 2026 and was still active on 13 September 2026. Its title reads "Black Friday Buy 1 Get 1 FREE + 30-Day Money-Back Guarantee", and the body beneath it repeats the same buy one get one free offer and the same 30 day money-back window. Read from the Meta ad library on 13 September 2026.

A Black Friday offer running continuously since the last week of March is five and a half months old, which makes it a price rather than a sale. That bears on the table above, because the $39.99 struck from $79.99 and the "50% OFF" badge beside it describe a discount from a figure the same brand sells at elsewhere on the same day.

The volume behind these pages, read 13 September 2026: Koprez was running 546 active United States Meta ads on page 104789644587334, plus roughly 300 Google ads under the advertiser name "Mandala Group LLC", and 80 of 90 sampled Koprez ads carried a buy one get one free offer, about 89%. One Compress was running about 842 active United States Meta ads across four page identities as advertiser "Ksquare, LLC", three of them named like publications, including "Pure Living Digest" with 290. Those four are Meta advertiser identities operated by Ksquare, LLC, and their ads land on onecompress.com.

KnitPair publishes one price for each of two options, $29.99 and $37.99, with no compare-at, no strikethrough and no sale badge, on our own page on 13 September 2026.

Ratings: 4.7 from 500K+ on koprez.com, 4.3 from 765 on Trustpilot

On its own site, read 13 September 2026, Koprez publishes "4.7/5 Based on reviews from 500K+ customers" and "(10,242 Reviews)" on both the homepage and the product page, with sub-scores of "Resullts 4.7/5 | Easy to Take 4.9/5 | Quality 4.7/5 | Value for Money 4.6/5". The misspelling is theirs.

On trustpilot.com/review/koprez.com, read 13 September 2026, the score is 4.3 from 765 total reviews: 82% five star, 7% four star, 1% three star, under 1% two star and 9% one star. The profile is marked "Claimed profile • September 2022" and carries a "Paid Trustpilot subscription" label.

The two counts are 10,242 on the site the brand controls and 765 on the profile the brand claimed and pays a subscription for, which is more than thirteen reviews counted in the first place for every one counted in the second. Both numbers are live on the same day and both are open to you in a browser.

Neither brand holds one customer number still either. One Compress publishes "800,000+ Satisfied Customers" and "Join the 500,000+ Happy Customers" on the same homepage, and Koprez publishes "200,000+" in Meta ad 1650980879516949 against "500,000+" on koprez.com and "Over 100,000 Real Satisfied Customers" on offers.koprez.com/Plantar-Fasciitis-Sleeves-EM, all read 13 September 2026.

The compression row is a four way draw

Nobody publishes a compression figure. The string mmHg does not appear on any of the 11 Koprez pages read on 13 September 2026, on the One Compress product pages on either storefront the same day, or on the OS1st FS6 page, and KnitPair does not publish one either. If a stated compression class is a requirement for you, none of these four answers it and you should shop where one is printed.

What fills that gap is marketing language, and it is not evenly distributed. Koprez publishes "Keeps pain away for good" on its site and "eliminate every symptom of plantar fasciitis forever in 4 weeks" on offers.koprez.com/Plantar-Fasciitis-Sleeves-EM, and Meta ad 1412433000108659, started 10 March 2026 and still active, promises "✅ Complete healing in 30 days or less". One Compress publishes "87% noticed meaningful pain relief within 2 weeks" and "92% Feel Less Pain" without saying what was measured or by whom. All read 13 September 2026.

The KnitPair Ankle Sleeve is a knitted nylon sleeve with an adjustable criss cross wrap strap, closed heel, open toe, about 60 g per sleeve, in black, slim enough to wear inside everyday shoes, and that description is the whole of what we publish about it.

Size charts: three images and one set of numbers

Koprez's size guide at koprez.com/pages/fs-size-guide is a heading and one image file, Plantar-Fasciitis-Size-Guide-Mob2_1_1024x1024.webp, carrying an empty alt attribute, with zero table elements on the page. One Compress publishes a single .jpg and OS1st a single .png. All read 13 September 2026, and none of the three image charts was read, so what any rival size actually measures is not something this page can tell you.

KnitPair publishes its three ranges as text in inches and centimetres: M 7.5 to 9 in (19 to 23 cm), L 9 to 10.4 in (23 to 26.5 cm), XL 10.4 in (26.5 cm) and up, measured around the ankle about 2 inches (5 cm) above the ankle bone. That is a formatting decision rather than a performance claim, and it is worth exactly as much as the fact that there are three of them against Koprez's six.

Shipping, where two rivals beat us

KnitPair ships free and tracked to 76 countries: 7 to 12 business days to the United States, 8 to 14 to Canada, 8 to 15 to the United Kingdom, 9 to 16 to Australia, 10 to 20 everywhere else we ship. Duties and import taxes are the customer's responsibility. Koprez publishes "Up to 5 Business Days" and free shipping over $60, though its own FAQ says "1-5 business days" instead, and OS1st publishes 3 to 7 business days and free shipping over $65, both read 13 September 2026. One Compress publishes free shipping over $75 on one storefront and over $95 on the other, with "2-5 business days" in the FAQ and "3-7 working days" on the policy page. If you want the parcel inside the United States this week, Koprez and OS1st both publish faster domestic windows than ours.

Who should buy which of these four

Buy OS1st if the single sleeve price or the published materials decide it. $24.99 is the cheapest single here, $39.99 buys a package the page states holds two sleeves, and the FS6 is the only one of the four publishing a fibre split. The trade is a 30 day window, read from os1st.com on 13 September 2026.

Buy Koprez if you want more size labels to choose from, or third-party reviews to read. Six size labels from S to 3XL, three colours, and a claimed Trustpilot profile carrying 765 reviews with 9% of them at one star. What those six labels measure sits inside an image file that was not read. Go in knowing the 30 day window, the $9.99 fit add-on, and that what you pay depends on which page you land on, all read 13 September 2026.

Buy One Compress if bamboo is specifically what you want, because it is the only one of the four describing itself that way, at $49.00, read 13 September 2026. First decide whether you are comfortable not knowing whether $49.00 buys one sleeve or two, and which of the two published windows, 60 days or 30, you expect to get.

Buy KnitPair if you want two sleeves for $37.99, 100 days to send them back, and a size chart printed as numbers. You give up $5.00 on a single sleeve against OS1st's $24.99, the fibre percentages that only OS1st prints, and three size steps against the six Koprez publishes. In exchange you get the cheapest two sleeve price in the table, a 100 day return window against the 30 days Koprez and OS1st each publish, the ranges in inches and centimetres rather than in a .webp, and one price per option with nothing struck through beside it.

Buy nothing yet if you have not measured your ankle. Every size chart here, ours included, keys off a circumference taken about 2 inches (5 cm) above the ankle bone, and thirty seconds with a tape measure tells you whether three sizes, five or six is even the right question. Whether a compression garment is suitable for you at all is a question for a clinician, not a product page.

Measure first, then pick the window you want

Put a tape measure around your ankle about 2 inches (5 cm) above the bone and check the number against the three published ranges: M 7.5 to 9 in (19 to 23 cm), L 9 to 10.4 in (23 to 26.5 cm), XL 10.4 in (26.5 cm) and up. If one of them covers you, the KnitPair Ankle Sleeve is $29.99 for a single and $37.99 for a pair, and you have 100 days to send it back.