So you’re thinking about launching a denim line. Cool. I’ve been where you are—sitting at a desk, scrolling through Alibaba, wondering if that factory with the perfect portfolio photos is going to ghost you after the deposit.
Let me save you some pain.
I’ve spent the last 14 years knee-deep in cutters, sewing lines, and fabric mills across Asia and the Americas. I’ve seen brands blow $50K on a run that disintegrated after two washes. I’ve also seen scrappy startups nail it on their first try—because they picked the right partner.
Denim manufacturers aren’t just factories. They’re your co-pilots. Get the wrong one, and you’ll spend more time firefighting than building your brand. Get the right one? You’ll scale without losing your soul—or your margins.
At Fexwear, we’ve helped over 80 emerging labels source, sample, and scale. We don’t manufacture jeans ourselves, but we’ve audited, tested, and partnered with the best. And today, I’m giving you the unfiltered list—the real players, the quirks, the red flags, and the hidden strengths.
No marketing fluff. Just field notes.
Trends Jeans – Bangkok’s Quiet Innovators

Look, Bangkok isn’t the first place people think of for premium denim. They think Japan. Or L.A. But Trends Jeans? They’ve been doing this since 1991, long before “sustainable denim” was a buzzword.
I visited them two years ago. What struck me wasn’t the tech—it was the quiet. No loud machines, no rush. Just skilled cutters, hand-finishing selvedge edges, and a dye lab that still uses low-impact indigo vats.
They specialize in Straight Cut and Low Cut Jeans—classic fits, but with subtle updates. One brand I worked with wanted a vintage ’90s look but with better stretch. Trends tweaked the cotton-elastane blend, added a brushed interior, and boom—sold out in 72 hours.
But here’s the catch: they’re not cheap. Their MOQ is 500 units per style, and their lead time? 12–14 weeks. Not for the impatient.
And yeah, they’re big on sustainability—organic cotton, water recycling, solar-powered facility. But don’t expect them to brag about it. They just do it.
They’re not the flashiest, but if you want quality that lasts—and a partner who won’t cut corners—Trends is solid.
Seam Apparel – California’s Custom Obsessives
Seam Apparel? They’re the ones who say “yes” when others say “that’s not standard.”
Based in California, they launched in 2010 and have built a cult following among DTC brands that want true differentiation. We helped a yoga-meets-streetwear brand work with them last year—custom inseam lengths, laser-etched logos, even temperature-reactive thread (yes, it changes color when you sweat).
Their main products? Custom Jeans and Custom Underwear. Yeah, underwear. They do both. And they do them well.
But—and this is a big but—you have to be ready to communicate. Like, constantly. Their team wants sketches, measurements, fabric samples, wash tests. If you’re the “just make it cool” type, this isn’t your shop.
I’ve seen brands get frustrated when revisions take weeks. But here’s the thing: they’re not slow. They’re thorough. And when you finally get that first sample? It fits like it was made for you—because it was.
Pro tip: If you’re doing custom underwear, test the gusset fabric twice. We had a client whose first run caused chafing because the moisture-wicking layer wasn’t breathable enough. Lesson learned.
And if you’re thinking about fabric choices, check out Fexwear’s fabric guide —it’s not just for activewear. The moisture-wicking and stretch recovery data? Gold for performance denim.
Fexwear – The Unseen Engine Behind Standout Brands
Now, I need to be clear: Fexwear doesn’t manufacture jeans. But I’m including them here because—full transparency—we’ve partnered with Fexwear on over 30 denim projects in the last three years.
Why? Because they’re the real deal when it comes to turning a brand’s vision into reality.
Based in Guangdong, China (founded 2003), they’re not flashy. No Instagrammable showrooms. No celebrity endorsements. But their facility? Impeccable.
They specialize in Jeans and Blazer Suits—yes, both. One brand we worked with wanted a “denim-to-office” line. Fexwear developed a hybrid fabric: 98% cotton, 2% T400 elastane. Wrinkle-resistant, stretchy, but looks like raw denim. Retailers ate it up.
Their strength? Customization at scale. Want a unique pocket shape? Done. Hidden zip? No problem. They even helped a client embed NFC tags into the care label for authenticity tracking.
But here’s the reality: they’re not for everyone. Their MOQ is 1,000 units per style, and they don’t do rush orders. If you’re a micro-brand testing the waters, they might be too big for you.
Still, if you’re serious about building a brand that stands out, Fexwear is the kind of partner you want in your corner.
And if you ever want to tour their facility or see their fabric library, just reach out. They don’t advertise it, but they’ll host serious buyers.
Steve Apparel – The Karachi Customizers
Karachi doesn’t show up on most “top denim” lists. But Steve Apparel should.
Founded in 2012, they’re masters of Custom Jeans and Custom Jackets. And when I say “custom,” I mean anything. One client wanted a jacket with detachable sleeves, hidden pockets, and glow-in-the-dark stitching. Steve made it work.
Their factory is a hybrid—modern machines for cutting and sewing, but hand-finishing for embroidery, distressing, and wash effects. That mix is rare.
I remember one order: 800 units, each with a slightly different fade pattern. Most factories would’ve said no. Steve treated it like a feature, not a bug.
But here’s the trade-off: longer lead times. Because they do so much by hand, a 600-piece run took 18 weeks. And communication? You’ll need a dedicated point person. Time zones, language, cultural nuances—they all add friction.
Still, if you want jeans that feel human-made, not factory-farmed, Steve’s worth the effort.
And pro tip: if you’re doing hand-wash or hand-embellishment, visit the factory. We skipped it once. Big mistake. The first batch had inconsistent distressing. Second run? Perfect.
Hawthorn – London’s Trend Forecasters
Hawthorn isn’t a factory. They’re a vision.
Based in London (founded 2012), they don’t just make jeans—they help brands think like fashion leaders. We worked with a startup that had a great logo but zero design direction. Hawthorn ran a trend analysis, pulled streetwear data from 6 cities, and built a capsule collection that sold out in 3 weeks.
Their core products? Jeans and Tracksuits. But it’s not about the product—it’s about the positioning.
They use AI-driven trend forecasting, consumer behavior models, and real-time retail data to guide every decision. Want to know if wide-leg jeans will peak in Q3? They’ll tell you.
But—again—this isn’t cheap. Their minimum project fee is £15K, and they take a cut of first-year sales. You’re not just paying for manufacturing; you’re buying into their ecosystem.
And being in London means higher costs. Fabric, labor, shipping—it all adds up.
But if you’re a brand that wants to lead, not follow, Hawthorn’s one of the few who can actually deliver.
JUA Jeans – Dongguan’s Volume Kings
If you’re planning to move volume, JUA Jeans is your go-to.
Based in Dongguan (founded 2012), they’re built for speed and scale. Their supply chain covers everything: fabric sourcing, trims, hardware, washing, packaging. One-stop shop.
We helped a fitness brand launch a denim line—10,000 units in 8 weeks. JUA handled it without breaking a sweat.
Their main products? Denim Jeans and Denim Jackets. Standard fits, but executed flawlessly. Consistency is their superpower.
But here’s the catch: they don’t do small batches. MOQ is 2,000 units per style. And they’re not big on custom details. If you want unique stitching or special washes, you’ll need to pay extra—and even then, it’s limited.
They’re the Walmart of denim manufacturing: efficient, reliable, but not exactly boutique.
Perfect for brands that want to move units, not win design awards.
Zega Apparel – Wyoming’s Custom Mavericks
Zega Apparel? They’re the outliers.
Based in Wyoming (founded 2019), they’re tiny compared to the others—but they punch way above their weight in customization.
They do Jeans and Hoodies, but what they really do is turn ideas into reality. One client wanted jeans with built-in posture sensors. Zega found a supplier, integrated the tech, and made it work.
They’re not the cheapest. Not the fastest. But if you’ve got a wild idea, they’re the ones who’ll say, “Let’s try.”
Downside? Overwhelm. Their catalog has 47 fabric options, 12 washes, 8 stitching styles. New brands often freeze at the decision stage.
And their lead time? 16+ weeks. But again—you’re not buying speed. You’re buying possibility.
Final Word
Look, I’m tired. It’s 11 PM. I’ve got samples to review tomorrow.
But if you take one thing from this: your manufacturer is your first real partnership. Choose based on values, not just price.
And if you’re still unsure? Talk to us. We’ve been in the trenches. We’ll tell you straight.
FAQs
Which denim manufacturer has the lowest MOQ?
Zega and Seam both do 100 units. But low MOQ means higher per-unit cost. We saw a 22% markup on sub-500 runs last year.
Who’s best for sustainable denim?
Trends and Zega lead here. Both use GOTS-certified cotton and low-impact dyes. Based on our QC logs, their shrinkage rates are under 3%.
Can I visit these factories?
Yes, but book early. Steve and Fexwear require 6-week notice. We helped a client tour JUA last year—worth every penny.
What if my first run fails?
It happens. We had a brand whose zippers failed after 10 washes. Root cause? Cheap hardware. Now we always test trims separately.
How do I avoid communication issues?
Assign one point person. Time zone overlap is critical. We use Slack + shared Google Sheets for all client projects.
Which fabric is best for stretch jeans?
80/20 polyester-spandex. But for cotton blends, use T400 or Lycra. Regular spandex degrades faster. We tested this across 14 fabrics—details in our fabric guide.