How to Choose Apparel Fabric for Wholesale: Wool, Satin & Cashmere

When I took over purchasing in 2020, I assumed the answer to “which fabric should I buy?” was simple: buy the best you can afford. Three seasons later, I learned the “best” fabric is not a property of the bolt. It’s a match between the fabric and the garment you’re actually going to cut.

I’m the procurement person for a 120-person apparel company that makes knitwear and woven blouses for independent retailers. I manage about $2.4M in annual material purchases across 11 fabric suppliers—maybe 10, depending on how you count the one we only use for trims. I report to both the design director and the CFO, so I hear about it if a fabric doesn’t sew or if a payment gets delayed. When anyone asks me how to choose apparel fabric for wholesale, my answer starts with the same question: What is this fabric doing in the garment?

The question behind the question

There is no universal “best wool fabric” or “best satin fabric.” There are fabrics that fit the end use, the production process, and the price point. Most sourcing mistakes happen when one of those three is ignored.

In my sourcing work, most wholesale fabric decisions fall into four scenarios:

1. Structured pieces like jackets, coats, and tailored skirts.
2. Cut-and-sew basics like wool jersey tees, skirts, and trousers.
3. Premium knit accessories, especially cashmere gloves and hats.
4. Lighter woven pieces like satin blouses, slips, and dresses.

Each scenario puts different demands on the fabric and the supplier. Let me walk through what I’ve learned about each one.

Scenario 1: Structured jackets and coats

For tailored outerwear, the first thing I look for is recovery—the fabric’s ability to bounce back after you sit, bend, or lift your arms. A beautiful pure wool can be terrible for a tailored jacket if it creases too easily. What I mean is, you need a fabric that holds a press and doesn’t bag out at the elbows, and that’s often a blend with a small amount of polyamide or elastomer, even in premium menswear.

This is where “Loro Piana wool fabric” comes up with my clients. They’ll say, “I want something like Loro Piana wool fabric—soft but with body.” I take that as a quality benchmark, not an order:

• Handle: the hand-feel should be smooth without being slippery.
• Weight: for a coat, I want roughly 350–450 gsm, depending on the climate.
• Finishing: a well-milled wool can be more durable than a fragile cashmere blend if it’s pressed and steamed correctly.

Here’s the counterintuitive part: for structured garments, a lower wool content can actually perform better than pure wool. A 60/40 wool/polyamide blend sounds less luxurious, but it can hold a center seam and a lapel roll longer than a 100% wool that’s too soft. That’s not because blends are evil and pure wool is sacred—it’s because mechanical performance matters more than the fibre label.

In my first year, I made the classic specification error: I said “medium-weight wool” instead of giving a gsm range. It cost us a $4,200 redo because the fabric was too stiff for the pattern. Now I write “360 gsm, twill weave, soft hand” and keep the physical sample with the purchase order. A good wool fabric supplier should also be able to answer four questions before you order: what is the weave, what is the gsm, what is the finishing process, and what is the shrinkage test result? If they can’t, move on.

Scenario 2: Cut-and-sew wool and satin basics

For basics, consistency beats novelty. You don’t want to fall in love with a fabric that only exists for one run, because your customer will reorder.

When I compared two wool jersey suppliers side by side—same color, same price per yard—the cheaper one looked almost identical on the hand swatch. But in production, it had a 6% shrinkage difference between the first dye lot and the next. Our sewn garments didn’t match the pattern. We recut 180 pieces and lost about two weeks. The contrast made me realize: the “same” fabric from the second supplier had been finished properly, with a stable heat-set process. Now I ask for lot-to-lot consistency data, not just a fast quote.

For satin fabric wholesale, the same rule applies, but the failure mode is different. Satin’s shine depends on finishing. Two rolls of charmeuse can weigh the same but look completely different after pressing if one has been calendered and the other hasn’t. I’ve seen a $2.40/yard satin leave a chalk line after the seam was pressed, while a $3.10/yard satin from the same country didn’t. That 70-cent difference was worth thousands in avoided redo.

Put another way: ask for a finishing trial before bulk. Sew a seam, press it, hang the garment for 24 hours, then check for surface distortion. If the fabric can’t survive that, it’s not a bargain.

Scenario 3: Premium knit accessories, especially cashmere gloves

When someone asks about Loro Piana Valle cable knit cashmere gloves, they usually don’t need the heritage label. They need a similar construction: a cable-knit pattern with a dense, twisted yarn that gives the cable depth and keeps its shape. Basically, the cable isn’t just decorative; it traps air, which is what makes the glove warm.

For cashmere, I specify micron range, twist level, and ply, not just “cashmere.” A 15.5 micron yarn feels soft enough for most next-to-skin accessories. A 14 micron yarn feels silkier, but it costs more and may pill faster if it isn’t spun tightly. For a glove, I’d rather have a 15.5 micron yarn with a firm twist than an ultralight 14 micron yarn that untwists under wear.

I learned this during our 2024 accessory capsule, when we tested two cashmere yarns from different mills. The cheaper one felt fine on the cone but knitted up with a vague, flattened cable. The other mill’s yarn held the cable like a rope. Same pattern, different knit definition. That contrast is exactly why I ask to see a knitted swatch in the exact pattern before committing to bulk yarn.

To be clear about my sample size: my cashmere experience is based on about a dozen accessory programs in the mid-to-premium segment. If you’re working at the level of a luxury house that partners directly with farms, your thresholds will be different. You’d be talking about single-origin lots and traceability reports. I can’t speak to that level in detail. Most brands don’t need it unless their whole story is built on fibre origin.

Scenario 4: Satin for eveningwear and blouses

Satin is a weave structure, not a single fabric. That’s the first thing to understand. A duchesse satin is a stiff, sculptural fabric for ballgowns. A charmeuse satin is a fluid, drapey fabric for slips and blouses. If you order “satin fabric wholesale” without specifying the type, you’re asking for a surprise.

My advice for satin is simple:

• Define the weight: 30–40 gsm is scarf territory; 60–80 gsm works for blouses; 100+ gsm is better for structured dresses.
• Define the stretch: a small percentage of spandex can keep a bias-cut slip from stretching out at the hips.
• Define the finish: true silk satin, polyester satin, and rayon/nylon blends each have a different drape and care profile.

Counterintuitive again: for bias-cut satin, a little stretch is not a bad thing. I used to think 100% silk satin was always the superior choice. Then I compared a 95/5 silk/spandex blend against a pure silk charmeuse in a slip dress. The blend hugged the body better and returned to shape faster after sitting. That’s a performance feature, not a downgrade.

How to know which scenario you’re in

If you’re not sure which of these applies, ask yourself four questions:

1. What is the garment’s job? If it’s tailored structure, focus on recovery and pressability. If it’s a delicate drape, focus on weight and finish. If it’s a warm accessory, focus on yarn twist and micron.
2. How many units are you cutting? A 200-piece run and a 2,000-piece run need different suppliers.
3. What does your price point allow? Not per yard, but per garment after lay-in, cutting waste, and trim.
4. What can you reorder? If your customer reorders, will the same fabric be available with the same hand and color?

My honest rule: if your product is a seasonal trend piece, you don’t need a historic mill. A reliable wholesale supplier with consistent finishing is enough. If your product is meant to last years, then a fabric with a known origin—like a specific Italian mill or a traceable Loro Piana wool fabric—can carry part of your brand story. The keyword is “fit,” not “fancy.” That’s also how I’d answer “which is better?” It depends, and that’s okay.

One more thing: verify current lead times and prices before you budget. As of Q4 2024, the custom wool and cashmere programs I source take 8–12 weeks from mill confirmation. That changes with wool auctions, seasonality, and capacity. Ask for a written lead time and a current lab test report. For EU destinations, confirming restricted substances compliance under REACH is part of that paperwork. If a supplier can’t give you documentation, walk away—I learned that after one invoice mess in my first year, and a fabric compliance issue is worse than an invoice error.