88% matchPOST ARCHIVE FACTION
Industrial-design logic, same sci-fi technical menswear
What changes: More experimental cutting, less graphic/logo jersey
Brand profile
Los Angeles label founded in 2014 by Yixi Chen, making retro-futurist, science-inflected menswear built on technical outerwear, treated denim and utility tailoring.
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C2H4 is a Los Angeles label founded in 2014 by Shanghai-born designer Yixi Chen, who named it after the molecular formula for ethylene. The brand builds a retro-futurist, science-referencing menswear language around technical outerwear, layered knitwear, distressed and coated denim, utility cargo pants and graphic jersey, usually in washed greys, off-whites and industrial tones. Collections run as chapters of an ongoing narrative rather than seasonal resets. Chen also operates the production studio Chemist Creations, and C2H4 pieces have been worn by Billie Eilish, Post Malone, The Weeknd and Kylie Jenner.
Overall fit
slightly large
C2H4 pieces are generally cut oversized and long in the body, so the label reads a touch large on the average Western frame, though the underlying block is Asian-based and can feel narrow in the shoulders or waist on larger builds.
Tip: Most shoppers take their true size for the intended oversized look and size down one for anything close to a normal fit, but check the garment measurement chart since sizing is drafted on an Asian-leaning block.
Medium confidence · based on 9 sources
By category
| Category | Runs | Shape | Size advice |
|---|---|---|---|
| Hoodies & sweatshirts | runs large | heavily oversized, boxy, wide sleeves | Take your usual size for the intended slouchy look, or size down for something closer to regular. |
| Jackets | runs large | oversized technical outerwear with dropped shoulders and generous armholes, built for layering | Take your true size or even size down, since there's already enough room for a hoodie underneath. |
| Jeans & denim | slightly small | straighter and closer through the waist and seat than the brand's other bottoms, with coated or distressed finishes that limit stretch | Consider going up one waist size if you're between sizes or want any room in the seat. |
| Shirts & overshirts | slightly large | relaxed through the body with a dropped shoulder | Stick to your normal size unless you're between sizes, in which case take the smaller. |
| T-shirts & graphic tees | runs large | boxy with dropped shoulders | Size down one if you don't want the exaggerated oversized drape. |
| Trousers & pants | true to size | relaxed to wide utility and cargo cuts, some with technical panelling | Order your usual waist and plan on shortening the inseam if you're under about 5'10". |
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
88% matchIndustrial-design logic, same sci-fi technical menswear
What changes: More experimental cutting, less graphic/logo jersey
85% matchDystopian sci-fi narrative techwear, heavier hardware
What changes: Darker, more militarized and cult-niche
84% matchBrutalist industrial palette and technical outerwear
What changes: UK class-narrative concept rather than retro-futurism
76% matchHardware-driven minimal futurism
What changes: Cleaner and more accessory-led, less distressed denim
C2H4 fits slightly large. Most shoppers take their true size for the intended oversized look and size down one for anything close to a normal fit, but check the garment measurement chart since sizing is drafted on an Asian-leaning block. C2H4 pieces are generally cut oversized and long in the body, so the label reads a touch large on the average Western frame, though the underlying block is Asian-based and can feel narrow in the shoulders or waist on larger builds.
C2H4 pieces are generally cut oversized and long in the body, so the label reads a touch large on the average Western frame, though the underlying block is Asian-based and can feel narrow in the shoulders or waist on larger builds. Overall shape: mostly relaxed and oversized, with dropped shoulders on tops and outerwear; denim and tailored-leaning pieces sit closer to the body.
C2H4 hoodies & sweatshirts runs large. Take your usual size for the intended slouchy look, or size down for something closer to regular. Shape: heavily oversized, boxy, wide sleeves.
C2H4 jackets runs large. Take your true size or even size down, since there's already enough room for a hoodie underneath. Shape: oversized technical outerwear with dropped shoulders and generous armholes, built for layering.
C2H4 jeans & denim fits slightly small. Consider going up one waist size if you're between sizes or want any room in the seat. Shape: straighter and closer through the waist and seat than the brand's other bottoms, with coated or distressed finishes that limit stretch.