The Market Bag: Why This Simple Knit Is the Most Useful Thing You’ll Ever Make on a KB Loom

There’s a particular kind of satisfaction that comes from carrying your groceries home in something you made yourself. Not the smug satisfaction of a bumper sticker, but the quiet, practical kind — the kind where your hands know exactly how many hours went into those sturdy mesh loops, and your shoulders appreciate the way the bag distributes weight across a wide, comfortable strap. If you’ve been loom knitting for any length of time, you already understand that feeling. And if you haven’t made a market bag yet, this post is your sign to start.

KB Looms have become a staple in the loom knitting world for good reason. Their range of boards, frames, and round looms opens up a surprising variety of projects, and the market bag sits at a perfect intersection of beginner-friendly and genuinely useful. Whether you’re working on the KB Sock Loom, the KB Rectangular Loom, or even the small round looms in your collection, there’s a market bag pattern waiting for you. Let’s talk about all of it — the history, the yarn, the technique, the customization, and why this project deserves a permanent spot in your crafting rotation.

A Brief History of the Market Bag

Before supermarkets lined their checkout lanes with single-use plastic, people carried their goods home in baskets, cloth sacks, and mesh bags made from string or twine. The string bag — sometimes called a bolsa, an avoska (Russian for “just in case bag”), or simply a net bag — has roots in cultures all over the world. In parts of Eastern Europe, people tucked one into a coat pocket every morning before heading out, just in case they happened across something worth buying. In Mexico and Central America, the bolsa de red remains a beloved everyday item, its open mesh stretching to accommodate whatever the market has to offer.

The modern reusable bag movement brought this tradition roaring back into mainstream consciousness, and crafters were quick to reclaim it. Knitted and crocheted market bags flooded Pinterest boards and Etsy shops through the 2010s, and they haven’t slowed down. The appeal makes perfect sense: they’re sustainable, washable, endlessly customizable, and they take genuine skill to make — which means they’re also a meaningful gift.

Loom knitters were sometimes left out of the market bag conversation because so many early patterns were written exclusively for needle knitters. That gap has closed considerably, and KB Looms in particular have inspired a thriving community of crafters who’ve adapted and developed loom-specific techniques to create bags that rival anything made on needles.

Why Loom Knitting Is Perfect for This Project

Loom knitting has a reputation — not entirely unfair — for being a beginner’s gateway into the craft. What that reputation misses is the sheer range of things a loom can do in experienced hands. The knit stitch, purl stitch, yarn-over, and their combinations produce exactly the same fabric as needle knitting. The difference is in the tool: pegs instead of pointed sticks, a knitting tool instead of a second needle, and a physical structure that holds your loops in place while you work.

For market bags specifically, the loom offers a few distinct advantages. First, the open mesh structure that makes a market bag so stretchy and breathable is naturally produced by yarn-over patterns, and yarn-overs on a loom are intuitive once you’ve practiced them a few times. Second, loom knitting tends to produce consistent tension across the fabric, which matters for a bag where you want every hole to be roughly the same size. Inconsistent tension in a mesh bag looks messy and can create weak spots. Third, working in the round on a loom gives you a seamless tube — which is exactly what you want for a bag that needs to hold up under real-world grocery weight.

KB Looms, with their fine-gauge peg spacing and high-quality construction, are especially well-suited to this kind of detailed work. The smooth pegs release yarn easily, which makes yarn-over rows much less frustrating than they can be on some other looms.

Choosing Your Yarn

The yarn you choose for a market bag will determine almost everything about how it performs. This is one project where it really does pay to think before you grab whatever’s on sale.

Cotton is the gold standard. It’s strong, washable, doesn’t stretch out permanently when loaded with heavy produce, and comes in a dizzying array of colors. Look for 100% cotton in a worsted or DK weight for a sturdy everyday bag. Some crafters swear by dishcloth cotton — brands like Peaches & Crème or Lion Brand 24/7 Cotton — because it’s widely available, affordable, and holds up to repeated washing without pilling or felting.

Linen and linen blends are increasingly popular for market bags because linen gets softer with every wash and has a beautiful drape that cotton can’t quite match. Pure linen yarn can be a little stiff off the skein, but after a few trips through the washing machine, a linen bag becomes wonderfully supple. The trade-off is cost: linen yarn tends to run more expensive than cotton.

Jute and hemp are worth mentioning for the environmentally-minded crafter. Both are incredibly strong and naturally biodegradable. The texture is rougher than cotton, which some people love for a rustic aesthetic and others find scratchy. Hemp yarn in particular has seen a surge in quality from indie dyers and small mills.

What to avoid: Wool and acrylic are generally not ideal for market bags. Wool can felt if it gets wet (which a bag that might hold wet vegetables definitely will), and while superwash wool avoids that problem, it tends to be quite stretchy, which means a heavily loaded bag can grow alarmingly long by the end of a shopping trip. Acrylic is durable and cheap, but it has a lot of stretch and can be uncomfortably warm to carry in summer. That said, rules in crafting exist to be broken — if you have a fiber you love and want to try it in a bag, go for it and see what happens.

For KB Loom projects, a DK or worsted weight cotton in a light color (so you can see your stitches clearly while learning) is a great starting point. Plan on roughly 200–300 yards for a small bag, 400–500 yards for a medium market bag, and up to 700 yards if you want something truly capacious.

Understanding the Mesh Stitch on Your KB Loom

The classic market bag mesh is created through a simple but repetitive combination of yarn-overs and knit-two-together (or its loom equivalent, a decrease stitch). On a KB Loom, this produces a pattern of open holes across the fabric — large enough to let you see what’s inside the bag and to keep the bag lightweight, but small enough that your oranges aren’t going to fall through.

The basic sequence works like this: on one round, you work a yarn-over followed by a decrease across the entire row, alternating them all the way around. On the next round, you work plain knit stitches. Those two rounds, repeated over and over, create the classic mesh.

The size of the holes depends on your yarn weight, your peg gauge, and whether you do your decreases as single or double decreases. Finer yarn on a close-peg loom creates a delicate, lacy mesh that’s beautiful but takes longer to work. Heavier yarn on a wider-spaced loom creates a chunkier mesh that works up fast and produces a bag with great stretch.

One technique that loom knitters often find useful for market bags is the “skip a peg” approach, where you deliberately leave a peg empty during certain rows to create larger holes. This gives you even more stretch and that classic string-bag look. It requires a bit of practice to keep your tension even, but the results are worth the experimentation.

A Basic Market Bag Framework for KB Looms

Rather than a row-by-row pattern (which would need to be tailored to the specific loom you’re using), here’s a general framework that you can adapt to whichever KB Loom you have available.

The Bottom: Most loom-knitted market bags are worked from the bottom up. You’ll start by casting on and working several rows of plain knit stitch in the round to create a flat, solid base. This bottom panel takes the most direct weight stress, so you want it denser than the mesh body. About 10–15 rows of plain stockinette in the round gives you a solid foundation.

The Body: After establishing the base, transition into your mesh pattern. This is where the bag will get most of its height. Work your mesh rounds until the bag is as tall as you want it — typically 12 to 15 inches for a standard market bag, though you can go taller for something that holds a full week’s grocery haul.

The Top Band: Before you bind off, work several rows of plain knit stitch again, mirroring the bottom. This creates a finished, sturdy edge that helps the bag hold its shape at the opening and gives you a stable place to attach handles.

Handles: This is where you have the most creative freedom. Loom-knitted i-cord makes excellent bag handles — it’s round, strong, and comfortable to carry. You can also knit a flat strap by working back and forth on a small section of pegs. Some crafters prefer to cut lengths of braided cotton rope or ribbon and sew them on after the fact, which sidesteps the knitting entirely and lets you pick exactly the handle length and style you want.

Finishing: Weave in your ends carefully, give the bag a wash to relax the fibers, and block it gently if the mesh looks uneven. Cotton responds beautifully to a good soak — it relaxes, the holes open up evenly, and the finished bag looks far more professional than it did fresh off the loom.

Customization Ideas

One of the best things about making your own market bag is that you are under absolutely no obligation to make it look like anyone else’s market bag. Here are some directions you might take it.

Color: A single-color bag is classic and easy, but stripes are almost no extra work and produce a cheerful, eye-catching result. Because you’re working in the round, you can change colors every two rows for a smooth stripe, or every row for a more textured, tweedy effect. Fair isle colorwork is possible on a loom but requires more skill and produces a denser fabric — probably not ideal for a mesh bag where openness is the goal, but worth exploring if you want a solid-bodied bag with a colorwork panel near the top.

Size: The same basic pattern scales easily. A small bag made on fewer pegs becomes a produce bag for a single type of fruit or a gift bag. A wide, shallow bag made on a rectangular loom becomes a beach bag or a farmers’ market tote. A very tall bag with long i-cord handles becomes an over-the-shoulder grocery carrier.

Stitch texture: Not every market bag has to be open mesh. A solid stockinette bag is perfectly functional and shows off variegated yarn beautifully. A seed stitch or moss stitch body gives you a bag that feels more substantial in the hand. You can also combine textures — mesh sides with a solid bottom and top band, for example, or a band of lace stitch running around the middle of an otherwise plain bag.

Personal touches: Embroidered initials on the bottom panel, a sewn-on fabric liner for carrying smaller items without worrying about things falling through the mesh, a toggle or button closure at the top for security — all of these are easy additions that turn a functional item into something genuinely personal.

Caring for Your Finished Bag

Cotton market bags are wonderfully low-maintenance. Machine wash in cold or warm water (not hot, which can cause some cottons to shrink), tumble dry on low or lay flat to dry. If you’ve used linen, the same rules apply, with the bonus that it gets better with every wash. Avoid fabric softener, which can coat cotton fibers and reduce their strength over time.

If your bag starts to look stretched out after heavy use, a hot soak (not a hot machine wash, but a hand soak in warm-to-hot water) followed by air drying can help it recover its shape. This works better for cotton than for most other fibers.

Store your bag bunched loosely rather than folded tightly — mesh fabric can develop permanent crease lines if compressed in the same way for a long time.

The Bigger Picture: Why Making Things Matters

There’s a broader conversation happening right now about consumption, sustainability, and the value of making things by hand. Single-use plastic bags have become a symbol of everything that went wrong in twentieth-century convenience culture, and while one knitted cotton bag isn’t going to solve a systemic problem, it represents something real: a choice to invest time and skill into an object that will last, that carries meaning, and that does something genuinely useful in the world.

Loom knitting sits in an interesting position in this conversation. It’s faster than needle knitting, more accessible to people with mobility challenges or fine motor differences, and yet it produces the same textiles — the same warm hats, the same cozy blankets, the same sturdy bags. KB Looms in particular have done a lot to make loom knitting feel like a craft worth taking seriously, with tools that are precise and durable enough to grow with a crafter from first project to hundredth.

A market bag made on a KB Loom is a small thing. It holds your apples and your sourdough. It sits in your car or by the door, ready when you need it. But it’s also an object that embodies something: patience, skill, a preference for the handmade, and a low-key but genuine commitment to using your time to make things that matter.

Getting Started

If you’re new to loom knitting or new to KB Looms specifically, the market bag is one of the best first intermediate projects you can tackle. It assumes you can cast on, work a basic knit stitch in the round, and bind off — all skills you likely picked up in your very first project. The yarn-over and decrease combination that makes the mesh is new but not difficult, and the repetitive nature of the pattern is actually meditative once you’ve got the rhythm.

Look for KB Loom-specific tutorials on YouTube, where the community is active and generous. The KB Looms website and social channels are worth following for new pattern releases and technique tips. And don’t underestimate the forums and Facebook groups dedicated to loom knitting — if you get stuck on a tricky row or can’t figure out why your mesh looks lopsided, someone in one of those communities has almost certainly had the same problem and found the solution.

Cast on. Work a few rounds. Watch the mesh appear stitch by stitch. And then carry your groceries home in something your hands made.

That’s what this craft is for.