HIGH! STANDARD Keeps Going Back to Knoxville’s Oldest Underwear Maker

recall 

• The Shop Behind the Collide 
• What “Besochu” Actually Means Here
• Healthknit: A Henley That Predates the Word “Streetwear”
• The Cloth Knit Crew Pocket: Knitwear’s Case for Summer
• The Smock Tee, in Two Tempers
• The Henley Goes to the Ballpark
• Reading the Collision as a Whole
• Styling the Range
• Where to Find It

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HIGH! STANDARD isn’t a brand so much as a building with strong opinions. The shop opened in 1982 inside a renovated house in Tokyo’s Sarugakucho neighborhood that, depending on which telling you read, once belonged to a foreign military doctor from the early Showa era. It started by selling nothing but Made in USA socks. Four decades later, under parent company Seilin & Co. — the same operator behind HOLLYWOOD RANCH MARKET, BLUE BLUE, and OKURA — it’s become one of Tokyo’s reference points for American basics: workwear, military surplus-adjacent pieces, sportswear, and outdoor gear, all filtered through a curator’s eye rather than a wholesaler’s catalog.

Healthknit has been a recurring partner in that curation for years, and the relationship keeps producing new permutations of the same idea: take a 120-year-old underwear maker’s signature silhouettes and push them somewhere Healthknit’s own mainline never would. The current chapter spans three pieces — a knit pocket tee, a smock tee, and that same smock tee in a product-dyed finish — alongside a standing henley-based piece that’s become a recurring fixture of the partnership in its own right.

 

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It’s worth noting that Healthknit isn’t an isolated case for HIGH! STANDARD — the shop runs a whole rotation of exclusives with manufacturers it trusts, including a parallel line with MT. RAINIER DESIGN, plus its own house-label tee program built from plain U.S. cotton and selected for fit over branding. The shop’s whole pitch, in other words, is that it would rather spend its energy editing and re-engineering pieces from manufacturers with real technical credibility than design from a blank page. Healthknit, with its hundred-plus years of underwear-grade construction, is about as credible a partner as that approach could ask for.

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Japanese retail has a specific word for this kind of arrangement — 別注, besochu, often translated loosely as “exclusive order” — and it’s worth being precise about what it does and doesn’t mean, because it’s easy to mistake for a simple co-branding exercise. A besochu isn’t a manufacturer slapping someone else’s logo on an existing product. It’s a retailer going back to a manufacturer’s own factory and requesting a genuine variation — a different fabric weight, an altered pattern, a finish the manufacturer doesn’t run in its own lineup — and getting it built to spec, in quantities small enough that mainline retail channels wouldn’t bother. HIGH! STANDARD’s Healthknit pieces are squarely that second kind: the smock tee’s side-pocket placement and binder neck aren’t things you’ll find on a Healthknit mainline henley, and the product-dye treatment on top of that fabric is a process HIGH! STANDARD specifically commissioned rather than selected from an existing catalog. That distinction is most of why these collaborations keep feeling substantial instead of decorative.

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Healthknit’s origin story is almost aggressively unglamorous, which is part of why streetwear and Americana shops keep returning to it. The brand traces back to 1900, when Standard Knitting Mills set up shop in Knoxville, Tennessee, to manufacture high-quality underknitwear — not casualwear, not fashion, just durable layers for working bodies. Its most enduring product, the three-button henley neck tee, was originally workwear underclothing before it migrated into everyday casual rotation decades later. In the 1980s, Healthknit began offering that henley in garment-dyed finishes, eventually expanding past twenty color options, and the silhouette has stayed a staple ever since.

Healthknit HIGH! STANDARD essentials featuring garment-dyed heavyweight cotton Tee  in timeless colors with a vintage-inspired aesthetic.

What makes Healthknit specifically useful as a collaboration partner is that its identity is almost entirely textural: U.S. cloth fabric bodies, open-end yarn spinning that traps air for a slightly rough, dry hand-feel, and tubular knitting construction that eliminates side seams entirely. None of that requires a logo to communicate — it’s legible through touch, which is exactly the kind of raw material a brand like HIGH! STANDARD likes to redirect toward its own design instincts.

The technical specifics are worth unpacking, since they explain why Healthknit pieces feel different from ordinary cotton tees even before you factor in any design changes. Open-end spinning — sometimes called open-end yarn or 空紡糸 in Japanese product copy — uses centrifugal force and airflow to twist fiber into yarn, rather than the more common ring-spinning method. That process traps small pockets of air between fibers, which produces a fuller, slightly coarser yarn that breathes differently than ring-spun cotton and develops a more textured surface with wash and wear. Pair that with tubular, or “circular,” knitting — where the fabric is knitted in a continuous loop rather than flat panels sewn together — and you get a tee with no side seams at all, which removes one of the more common points of skin irritation on a fitted garment and lets the body skim more loosely without bunching at the hips. Those two choices, more than any specific silhouette, are what people mean when they describe a Healthknit tee as feeling “broken in” straight out of the bag.

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The most recent addition to the line is also the one that requires the most explaining, since it asks people to accept a premise that sounds backwards on its face: a knit fabric, in summer. The Cotton Knit Crew Pocket retails at ¥13,200 and comes in six colorways — PINK, YELLOW, SAX, NAVY, IVORY, and BLACK, sized S through L — and takes its cue from the American “pocket tee” archetype, with a single chest pocket as its defining feature.

The case for wearing knitwear in hot weather rests on two details working together. The knit structure itself lets air pass through the fabric in a way that a tighter woven cotton can’t, and the boxy, oversized silhouette keeps the fabric from clinging to skin, which matters more than fabric weight once humidity gets involved. Sleeves are cut to land around the elbow — long enough to read as deliberate rather than cropped, short enough to stay seasonal. The colorway range leans into that same logic: fluorescent yellow and pink aren’t colors knitwear typically gets to wear, and putting them on a piece this textural is a small rebellion against the idea that knit has to mean muted and safe. On the back neck, a double-name tag pairs Healthknit’s branding with HIGH! STANDARD’s, which is the only overt signal that this isn’t a Healthknit mainline piece.

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The other half of the current lineup runs through HIGH! STANDARD’s own house silhouette rather than Healthknit’s. The Heavyweight Smock Tee, known informally as “SMOCK T,” retails at ¥9,680 in WHITE, BLACK, BURGUNDY, MUSTARD, TEAL, and NAVY, sized M through XL. Its defining trait is a pair of patch pockets set at the lower sides rather than centered on the chest — a detail pulled from military workwear rather than American basics — paired with a tough, durable fabric and a binder neck construction that resists losing its shape after repeated wear. The pocket placement is specifically engineered to sit naturally against the body rather than gape or shift, which is the kind of detail that’s invisible until you’ve worn a smock tee that doesn’t do that.

The newer variant takes that same smock and runs it through a product-dye process — dyeing the garment after construction rather than dyeing the yarn beforehand — at ¥10,450 in BLACK and NAVY, sized M through XL. Product dyeing produces the kind of subtle, piece-to-piece variation that yarn-dyeing can’t replicate, since the finished garment absorbs tincture slightly differently depending on its construction and seaming. The practical result is a tee built to fade and shift tone with wear and washing, so the version you buy in June won’t look quite like the version you’re wearing by autumn — by design, not by flaw.

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Running alongside the current seasonal pieces is a standing item in the same collision series that deserves mention precisely because it inverts the usual direction of influence: a Baseball Pullover Tee that takes Healthknit’s henley neck — the brand’s single most identifiable silhouette — and rebuilds it with the styling cues of a baseball pullover shirt. Where the smock pieces import military DNA into a Healthknit base, this one runs the opposite direction, taking Healthknit’s own signature neckline and bending it toward sportswear. It’s currently in its second colorway update, with three new tones added to the rotation alongside the originals.

Taken together with the smock tees and the pocket tee, the henley-based piece rounds out a collide  that’s stopped being a single seasonal drop and become something closer to an ongoing design conversation — one where Healthknit supplies the fabric vocabulary and HIGH! STANDARD keeps finding new sentences to write with it.

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What’s notable about the current Healthknit × HIGH! STANDARD lineup isn’t any single piece — it’s that the three current-season items pull from three different reference points without losing a shared identity. The pocket tee borrows from American basics. The smock tee borrows from military workwear. The pigment-dye smock borrows from denim and vintage-wash culture’s obsession with visible aging. None of those would necessarily sit together on a single rack, but routing all three through Healthknit’s specific construction language — the open-end yarn, the tubular knit, the dry hand-feel — gives them enough of a common accent that the range reads as one collection rather than three unrelated tees that happen to share a tag.

That’s also the throughline across HIGH! STANDARD’s broader collaboration history. The shop has run similar exclusives with MT. RAINIER DESIGN and others, always working from the same premise: take a heritage manufacturer’s most legible technical detail and let it carry a design idea the source brand wouldn’t pursue on its own. Healthknit gets a louder, more experimental showcase for fabric construction it usually keeps quiet. HIGH! STANDARD gets access to a textile story it would take decades to build in-house. Neither side has to compromise its core identity to make the trade work, which is probably the simplest explanation for why this particular partnership keeps getting renewed instead of running its course after one or two seasons.

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None of these three pieces is designed to disappear under something else, which is worth flagging for anyone used to treating a tee as a base layer rather than a statement. The pocket tee’s boxy fit and bright colorway options work best worn on their own or under an open shirt where the color and pocket detail stay visible — layering it under a heavier jacket mostly just hides the reason you bought it. The smock tee, by contrast, reads more like a piece built for transitional weather: the side-pocket placement and tougher fabric make it suited to wearing under a light jacket in cooler months and on its own once temperatures climb, which is part of why HIGH! STANDARD frames it as a year-round piece rather than a single-season item. The product-dyed version, given how visibly it’s designed to fade and shift with wear, rewards being worn often rather than saved — the variation in tone that product dyeing produces only becomes interesting once a few wash cycles have had time to work on it.

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The full current lineup is available through HIGH! STANDARD’s Shibuya shop and the SEILIN ONLINE SHOP, alongside Seilin & Co.’s other storefronts — BLUE BLUE Kobe, Kokura, Nagoya, Gifu, Osaka, Sendai, and Sapporo. As of this writing, all three current-season pieces are listed as in regular stock rather than limited or pre-order, with the Cotton Knit Crew Pocket at ¥13,200, the Heavyweight Smock Tee at ¥9,680, and the Heavy Smock Tee Pigment Dye at ¥10,450.

For anyone outside Tokyo without easy access to the physical shop, the SEILIN ONLINE SHOP carries the full range with English-language product pages, which makes this one of the more accessible Healthknit besochu lines for international buyers compared with department-store exclusives that rarely ship overseas at all. Given the ongoing nature of the partnership, it’s also worth checking back periodically — both the smock tee and the henley-based Baseball Pullover have already gone through at least one round of new colorways since their original release, and there’s no indication the collaboration is winding down anytime soon.