Primaloft Sourcing FAQ: A Procurement Manager on ACG Jackets, Military Specs, and More

Primaloft, from the buying side

I'm a procurement manager at a 45-person outdoor apparel company, and for the last six years I've tracked every fabric and insulation order in a cost system that now shows roughly $180,000 in cumulative purchases. Primaloft keeps coming up in those orders, especially when someone asks about an ACG Primaloft jacket, a military Primaloft jacket, or a sleeping bag that has to survive damp weather.

This is a FAQ-style collection of the questions I actually answer. If you're about to spec Primaloft for a small line, this should save you a phone call.

Is Primaloft worth the cost, or are you paying for the name?

Look, I'm not saying generic synthetic insulation is bad. I'm saying you should buy Primaloft when the product needs to keep working wet. I only believed that after ignoring it.

In 2023, we sent out a small batch of jackets with a cheaper insulation because the per-yard price was 35% lower. The first feedback came back fast: "gets cold after rain." We re-quoted the same jacket with Primaloft Gold, and the complaints stopped. Primaloft's published spec sheet backs this up—it's engineered to keep its CLO value when wet in a way that standard polyester batting doesn't.

Why does that matter? Because the cheapest insulation in the drawer is only cheap if the finished product works. If you're making a fashion jacket for a dry climate, generic is fine. For anything that might see drizzle, Primaloft is insurance.

What's the difference between an ACG Primaloft jacket and a military Primaloft jacket?

Asking that question is more common than you'd think. The insulation family can be the same, but the surrounding spec is totally different.

An ACG Primaloft jacket—ACG is Nike's All Conditions Gear line—is designed for urban and trail use. It has Primaloft warmth, but the fabric, fit, and pocketing are built for a consumer who cares about style and packability. The factory price reflects that: you're paying for design, branding, and a smaller production run.

A military Primaloft jacket, on the other hand, is usually built to a contract spec: a specific fill weight, shell weave, packing test, and QC requirement. The expense isn't necessarily the Primaloft. It's the testing, documentation, and inspection. If you're a small brand, you don't need military-grade unless the customer's RFP literally spells it out.

One thing I tell every startup: don't ask a factory for 'military grade' without defining it. That word can add 20-30% to your unit cost because the factory assumes you want every test in the book.

What is poly viscose fabric, and why do factories keep offering it?

Here's the thing: "poly viscose" sounds like a technical fabric, but it's just a polyester-viscose blend. Polyester gives you strength and easy care; viscose gives you a softer drape and hand feel. What is poly viscose fabric used for in an insulated jacket? Usually pocketing, facings, or a lightweight lining—not the primary insulation shell.

Before you approve it, ask for the blend ratio. The most common breakdown I see is 65% polyester / 35% viscose, but 50/50 shows up too. Viscose absorbs moisture, so for a Primaloft jacket liner, I prefer nylon or polyester mesh if there's any chance of sweat. Poly viscose is fine for a tote bag or a dust cover, less fine for something worn hard. I want to say 65/35 is the standard in our files—don't quote me on that—but the point is to ask.

Why are gray fleece leggings more expensive at one factory than another?

Gray fleece leggings seem simple, but the price differences are driven by three numbers: fabric weight, fiber blend, and seam finish.

In a January 2025 quote cycle, I compared 280 GSM brushed-back polyester leggings against a 200 GSM poly-spandex version. The 200 GSM was 40% cheaper on paper, and I almost took it. The cheaper one pilled after the first wash. The 280 GSM one kept its shape. That's a total-cost-of-ownership mistake I've made once—I don't plan on making it again.

Also, if your customer cares about a specific heather gray, put a Pantone reference on the spec. Industry tolerance for color-critical work is Delta E < 2; anything above 4 is visible to most people. That "fashion gray" can turn green or blue on different base fabrics, so you need a fixed target. Reference: Pantone Color Matching System guidelines.

Does the burrito duvet cover method belong in a garment factory?

I came across the burrito duvet cover method in a home-sewing tutorial years ago, so I was surprised when a factory manager used the same idea to make an insulated panel for a jacket. The method is exactly what it sounds like: you roll the shell and insulation together, stitch around it, then pull the whole thing right side out through a gap. Done right, it leaves a clean seam allowance and no raw edges on the inside.

Does it apply to a Primaloft jacket? Yes, but with a caveat. The burrito method costs more in setup time and labor than a simple quilt-through stitch. For a small run, the per-piece price will be higher. If you're comparing quotes and one factory lists 'burrito finish' as a line item, now you know why. It's not filler—it's a different construction method.

Primaloft order minimums: will anyone take a small brand seriously?

Yes, but you have to be smart about it. I've been the small order. The first sample order I ever placed for a Primaloft jacket—if I remember correctly, it was 12 yards of a certified shell plus two batts of insulation—was treated seriously by a vendor that has since grown with us. Today those same vendors include a note on our larger orders: "We remember when you bought yardage."

Small doesn't mean unimportant; it means potential. That said, Primaloft products are sold through a distribution network, and there are legitimate minimums. Don't demand the same per-yard price as a 10,000-yard order. Do ask for the total cost: cutting waste, shipping, testing, and minimums hidden in fine print. I built a cost calculator after getting burned on hidden fees twice—that's how I found a vendor whose "low price" was 17% higher than the next one once I added fees.

Primaloft vs down: which one should a budget-conscious brand choose?

I went back and forth on this for two weeks before our 2024 winter line. Down offers a better warmth-to-weight ratio when it's dry and packs smaller. Primaloft offers something down can't: reliable warmth in wet conditions without requiring a fully waterproof shell and careful treatment.

For us, the answer ended up being both. Our premium sleeping bag got down. Our everyday waterproof-shell jacket got Primaloft. If you can't carry both, ask where the product will be used and what the user will do when it gets wet. In a rainy environment, the Primaloft jacket is the safer purchase.

And don't get sucked into the "down is always premium" marketing. For a wet-weather garment, a quality synthetic is the better product—and since it doesn't need the same down-proof fabric, it can also be cheaper.