Hey there, thanks for stopping by my little corner of the internet! I’ve been in the knit and woven garments game for over a decade now, and I swear one of the most common questions I get from new buyers is: “What’s actually different between a knit sweater and a woven sweater? Is it just the way it looks?” Knit And Woven Garments
Short answer? Nah, it’s way deeper than that. I’ve had a lot of folks mix these two up, especially when they’re just starting out, and it can lead to total missteps on orders—like when someone asked for a “light knit sweater” last year and got a woven cardigan that was way too stiff for what their store’s customers wanted. So today, I wanna break down the real differences in how these two types are made, straight from someone who’s seen the factory floor every single week. Let’s dive in.
First off, let’s get the basics out of the way—no fancy jargon, I promise. Both knit and woven sweaters start with yarn, right? But that’s pretty much where the thread (pun totally intended) starts to split. Let’s start with knit sweaters first, since that’s what most people picture when they say “sweater.” Knitting is all about interlooping one single yarn over and over again, right? You use either knitting machines (90% of the time these days, no one’s hand-knitting bulk orders) or needles to make those little loops called stitches. Every stitch connects to the next one, which is why knit sweaters are stretchy, soft, and have that cozy give.
Wait, let me tell you how it actually works on the factory floor, ‘cause I don’t want this to be textbook stuff. When we make a knit sweater, we first load spools of yarn onto a circular knitting machine or a flatbed machine. The machine moves the yarn through hundreds of tiny needles at super fast speeds—like, a circular machine can pump out a full sweater body in 10 minutes, no lie. Those needles pull the yarn into those interlocking loops we talked about. If you look closely at a knit sweater’s inside, you’ll see little v-shaped lines or what looks like a tiny wavy grid—that’s the stitches. And here’s the thing: if one stitch snaps (which rarely happens, but it does), you get a run, right? Like when you snag your favorite sweater on a chair and it goes all the way down. That’s a key trait of knitting.
Now woven sweaters? Total opposite. Weaving uses two sets of yarns, not just one. They crisscross each other at right angles—think of a grid, with warp yarns going up and down, and weft yarns going left to right. There’s no interlooping here, it’s more like over-under, over-under. And woven stuff isn’t stitched together like knit garments—wait, actually, woven sweaters are often cut from a flat piece of fabric, then sewn together. That’s a huge difference. When I first started, I used to mix up the sewing steps for knit vs woven, but no—knit sweaters are usually made “in the round” so you don’t have side seams, right? Woven sweaters? You cut the panel for the front, the back, the sleeves, then stitch the sides and shoulders together. That’s why woven sweaters have way more seams than most knit ones, unless it’s a super simple style.
Let’s talk about the stretch factor because that’s what matters for your customers. Knit sweaters are stretchy because of those interlocking loops—you can pull them, and they bounce back. That’s why they feel so cozy, like they fit most body types a little better. Woven sweaters? Way less stretch. They’re rigid, structured, hold their shape really well. So if you’re making a blazer-style sweater that you want to keep its sharp lines, woven’s the way to go. But if you’re making a chunky cable knit or a soft turtleneck that you want to move with you, knit is non-negotiable.
Wait, let’s get into construction specifics, ‘cause this is where the real work happens. For a basic crew neck knit sweater: first, we knit the entire body flat or in the round, then the collar is usually a separate ribbed knit piece that we stitch on at the end, the sleeves are either knit in the round and sewn in, or knit as part of the body (set-in sleeves). No cutting of the main fabric, basically—most of the shaping comes from adjusting stitch count as you knit. Like, to make the shoulders narrower, we reduce the number of stitches at the top when we get to the shoulder area. Super seamless, minimal seams, which is why they feel so soft against your skin.
Woven sweaters, though? Let’s take a simple cardigan. First, we weave the fabric first—so we have a big flat bolt of woven material, right? Then we lay out the pattern pieces on the fabric, cut them out with industrial cutting machines (or hand cut for small runs, but bulk is machine cut), then we sew them. The front panels, the back panel, the sleeves—each is a separate cut piece, then we stitch the sides, stitch the sleeves into the armholes, stitch the collar on, stitch the buttons on. All those seams add up, and since the fabric isn’t stretchy, those seams need to be super strong, otherwise they’ll split. I’ve seen woven sweaters with busted seams right after one wear ‘cause the sewing wasn’t done right—knit sweaters rarely have that issue unless the stitches are really thin.
Another big difference: fabric texture and weight. Knit sweaters can be chunky, fuzzy, light as a feather—think a fine merino wool knit that’s almost like a t-shirt, or a thick cabled knit that’s warm enough for winter. The texture comes from the stitch pattern too—cable stitches, rib stitches, seed stitches, all that is just varying how the needles move to make different loops. Woven sweaters? Their texture comes from the weave pattern—plain weave (super tight, smooth), twill weave (a little diagonal, like denim), satin weave (shiny, silky). You can’t get a cable knit texture with weaving, that’s impossible. I once had a customer ask for a woven cable knit sweater, and I had to be like “Sorry, that’s a knit thing—we can do a woven version that looks similar but it won’t have the same stretch.” They ended up going with a knit one and were way happier.
Durability is another thing we get asked about a lot. A lot of people think knit sweaters pill more, right? And that’s mostly true—because those little loops can catch on things, and the fuzzy fibers on the surface (especially if it’s acrylic or wool) can ball up. But woven sweaters, since they’re a tight grid of crisscrossed yarns, don’t pill as much. But wait—woven sweaters are more prone to tearing along the seams if you pull too hard, while a thin knit might get a run, but it won’t tear the whole panel. I’ve tested this a million times—grab a knit sweater fabric and pull hard, it stretches, maybe a small run. Grab a woven sweater fabric and pull hard, it splits right along the seam line every time. That’s a trade-off, obviously.
What about use cases? Like, when would you order one over the other? If you’re making casual everyday wear—hoodies, crew necks, cardigans, turtlenecks—knit is the go-to. If you’re making something structured like a sweater blazer, a formal cardigan that needs to hold its shape, a shawl collar sweater that’s crisp, woven is better. I’ve had clients make a whole line of knit sweaters for their holiday collection ‘cause they’re soft and comfortable for gifting, and another client do woven sweater coats for their winter outerwear line ‘cause they need to stand up in the wind and keep their structure.
Wait, let’s talk about small vs bulk runs, ‘cause as a supplier, I know that’s a big pain point for a lot of you. For small runs (like 500 pieces or less), knit can be a little trickier to switch patterns on, ‘cause the machines are set for a specific stitch count. Woven is easier for small runs because you can cut custom pattern pieces without wasting a ton of fabric if you change designs. For bulk runs (10,000+), knit is way faster—those circular machines crank out sweaters so quick, and since you knit the whole piece, you don’t have to do as much cutting and sewing. Woven bulk runs take longer ‘cause you have to weave the fabric first, then cut, then sew all the panels. I once quoted a bulk order for 50,000 sweaters, and the knit one was 2 weeks faster to produce than the woven one—huge difference when you’re on a tight deadline for a seasonal drop.
Oh, and don’t get me started on care, ‘cause that affects customer satisfaction. Knit sweaters need to be washed more carefully—many are dry clean only, or need to be hand washed and laid flat to dry, ‘cause if you machine wash them, they can shrink or stretch. Woven sweaters? Most are machine washable, super easy to care for, which is a big selling point for customers who don’t wanna fuss with their sweaters. That’s something I always mention to clients when they’re choosing between the two—if your customer base is people who want low-maintenance clothing, woven is a better pick. If they care about cozy, comfortable fits that move with them, knit is the way.
Wait, has anyone ever told you that woven sweaters are cheaper? Not always, actually. It depends on the yarn, the stitch, the weave. A chunky hand-knit wool sweater is way more expensive than a basic woven polyester sweater, but a fine merino knit sweater is similar in price to a high-thread-count woven cotton sweater. The cost really comes down to the materials, the complexity of the design, the number of seams, not just if it’s knit or woven. I’ve had knit sweaters that cost less than woven ones ‘cause we used a cheaper yarn and a simple stitch, and vice versa—no hard rule there.
Let me share a quick horror story to drive this home, ‘cause this is real stuff. A few years back, a client came to me asking for “woven knit sweaters” for their brand, which is a trendy streetwear line. They said they wanted the softness of knit but the structure of woven. I tried to explain that doesn’t exist, but they insisted, so I worked with their design team to make a woven sweater that mimicked knit stitch patterns as closely as possible. But when they got the samples back, their customers hated it—said it felt stiff, didn’t stretch, didn’t fit right. They ended up redoing the whole order as knit, and their sales went up 30% that season ‘cause customers loved the soft, cozy fit. That’s when I realized how important it is to clear up these differences before someone places an order, ‘cause miscommunication like that can mess up a whole collection.
So, to wrap this up (pun again, sorry, can’t help it), the main differences in how they’re made are: knit uses one set of interlooping yarns, woven uses two sets crisscrossing at right angles; knit is usually made in one piece with minimal seams, woven is cut into panels and sewn together; knit is stretchy and soft, woven is structured and low-stretch; production time and cost depend on way more than just the type, but bulk knit runs are usually faster.
Sun Protective Clothing If you’re a brand owner, a boutique buyer, or anyone looking to order knit or woven garments, I can help you figure out what’s best for your needs. I’ve got years of experience working with all types of fabrics, different yarns, different designs, and I can help you avoid the missteps that that client did a few years back. Whether you need a small sample run or a huge bulk order, I’ve got the factory connections and the know-how to get you exactly what you want. If you’re interested in chatting through your next project, just reach out. I’m always down to answer questions, no pressure, just honest advice from someone who’s in the trenches every day.
References
- "Textile Production: Knitting vs Weaving." Fashion Institute of Technology, 2022.
- Jones, M. (2021). The Complete Guide to Apparel Manufacturing. Fairchild Books.
- "Sweater Construction and Care Guidelines." Textile Institute, 2023.
- Industrial Knitting and Weaving Machinery Handbook. Global Textile Association, 2022.
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