
B.D. Button-Down Shirt
The oxford and chambray B.D. shirt is Beams Plus's Ivy cornerstone, offered every season in classic fit and endless fabrics.
21 live now · from $68
Explore B.D. shirts →Brand profile
Beams Plus is the Tokyo-based heritage menswear line of retailer Beams, reworking classic American Ivy, workwear and military styles in Japan.
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Mid-century Ivy, workwear, military and outdoor pieces are rebuilt with Japanese fabrics and slimmer, contemporary proportions rather than copied one-to-one.
Collections are archive-driven rather than trend-led: oxford button-downs, chinos and fatigues, varsity and quilted liner jackets, Shaggy Dog knits, six-panel caps.
Launched in 1999 as Beams' heritage menswear label, it sells through Beams stores in Japan plus international stockists like SSENSE and End.

The oxford and chambray B.D. shirt is Beams Plus's Ivy cornerstone, offered every season in classic fit and endless fabrics.
21 live now · from $68
Explore B.D. shirts →
1Pleat and 2Pleats trousers in twill, wool and linen define the label's mid-century American cut redrawn in Japanese fabrics.
10 live now · from $74
Explore pleated trousers →
The packable Anywhere(wear) jackets and trousers are Beams Plus's own take on easy, travel-ready tailoring.
5 live now · from $182
Explore Anywhere(wear) →Available atLost & Found · END. · STAG Provisions · Blue in Green
Overall fit
runs small
Beams Plus uses Japanese sizing, so garments typically feel about one size smaller than a comparable US or European piece, with narrower shoulders and shorter sleeves, even though recent seasons have introduced roomier, boxier cuts.
Tip: Most US/EU shoppers should size up one from their usual size (occasionally two if they are tall or broad), and check the brand's cm measurements rather than trusting the S/M/L label.
High confidence · based on 18 sources
By category
| Category | Runs | Shape | Size advice |
|---|---|---|---|
| Hoodies & sweatshirts | runs small | regular to slightly boxy loopwheel-style sweats | Size up one, or two if you plan to layer over a shirt. |
| Shirts & overshirts | runs small | trim through the chest and shoulders on classic OCBDs; newer camp-collar and popover styles are noticeably boxier | Size up one from your usual shirt size, and two if you have long arms or a broad back. |
| Trousers & pants | slightly small | varies widely — slim Ivy chinos alongside relaxed fatigues and wide-leg pleated cuts | . |
| Jeans & denim | slightly small | straight to slightly tapered five-pocket cuts | Take your usual waist or go up one if the denim is rigid and unsanforized. |
| Jackets | runs small | trim through the shoulders and chest, closer to a Japanese archive cut than a US original | Size up one, and consider two if you want to layer a knit or shirt jacket underneath. |
| T-shirts & graphic tees | runs small | mostly boxy to regular, with a fairly high, tight neckline on pocket tees | Size up one unless you specifically want a cropped, close-fitting tee. |
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
85% matchArchive Ivy shirting, same button-down oxford DNA
What changes: Shirts only, no outerwear or knitwear
82% matchAmerican Ivy and workwear rework, US-made emphasis
What changes: More tailoring-led and dressier
76% matchCraft-driven prep-meets-workwear with louder texture
What changes: Smaller range, more novelty knits and embroidery
74% matchBritish workwear source material, boxier fits
What changes: UK military/workwear rather than US Ivy, roomier cuts
Beams Plus runs small. Most US/EU shoppers should size up one from their usual size (occasionally two if they are tall or broad), and check the brand's cm measurements rather than trusting the S/M/L label. Beams Plus uses Japanese sizing, so garments typically feel about one size smaller than a comparable US or European piece, with narrower shoulders and shorter sleeves, even though recent seasons have introduced roomier, boxier cuts.
Beams Plus uses Japanese sizing, so garments typically feel about one size smaller than a comparable US or European piece, with narrower shoulders and shorter sleeves, even though recent seasons have introduced roomier, boxier cuts. Overall shape: generally trim through the shoulders and chest with a moving-target silhouette — older Ivy pieces are slim, recent seasons lean relaxed and boxy.
Beams Plus hoodies & sweatshirts runs small. Size up one, or two if you plan to layer over a shirt. Shape: regular to slightly boxy loopwheel-style sweats.
Beams Plus shirts & overshirts runs small. Size up one from your usual shirt size, and two if you have long arms or a broad back. Shape: trim through the chest and shoulders on classic OCBDs; newer camp-collar and popover styles are noticeably boxier.
Beams Plus trousers & pants fits slightly small. . Shape: varies widely — slim Ivy chinos alongside relaxed fatigues and wide-leg pleated cuts.
Beams Plus is the heritage menswear line of Japanese retailer Beams, launched in 1999 and based in Tokyo. It reinterprets mid-century American Ivy, workwear, military and outdoor clothing using Japanese fabrics and slimmer, contemporary proportions. Staples include button-down oxford shirts, chino and fatigue trousers, varsity and quilted liner jackets, Shaggy Dog knits and six-panel caps. Collections are seasonal and archive-driven rather than trend-led, and the label works regularly with footwear and outerwear makers. It sells via Beams stores in Japan and international stockists including SSENSE and End.