Kato Drawstring Project Bag: A Free Pattern and Video Tutorial from Sew Modern Bags
If you’ve been searching for a stylish, functional, and beginner-friendly bag to sew, the Kato Drawstring Project Bag might just be exactly what you’ve been looking for. Whether you’re a seasoned sewist or just picking up a needle and thread for the first time, this pattern from Sew Modern Bags is designed to guide you through every step with clarity and confidence. In this post, we’re diving deep into everything you need to know about the Kato Drawstring Project Bag — the materials, the method, the tips, and why this little bag deserves a permanent spot in your sewing rotation.
What Is the Kato Drawstring Project Bag?
The Kato Drawstring Project Bag is a versatile fabric bag pattern designed to hold all of your on-the-go projects. Think knitting, crochet, embroidery, small sewing kits, journaling supplies, makeup, travel essentials — the list goes on. The beauty of a well-designed drawstring bag is that it’s endlessly adaptable. You can sew it up in quilting cotton for a lightweight everyday carryall, use canvas or home décor fabric for something sturdier, or even reach for a novelty print to make it a truly one-of-a-kind gift.
The Kato bag features a clean, structured silhouette with a flat bottom that gives it real shape and stand-up stability. This is what sets it apart from a basic gathered drawstring pouch. It looks intentional, thoughtful, and genuinely well-made — which means it’s the kind of thing you’ll be proud to carry out of the house or give as a handmade gift.
The accompanying video tutorial walks you through each step of the construction process, making it an ideal project for visual learners. Even if written patterns sometimes leave you scratching your head, the video paired with the written instructions creates a complete learning experience that takes the guesswork out of every seam.
Why Sew a Drawstring Project Bag?
Before we get into the pattern itself, let’s talk about why drawstring bags are such a beloved staple in the sewing community.
Drawstring bags are fast to sew. Most of them can be completed in an afternoon, even if you’re moving at a leisurely pace. They use relatively small amounts of fabric, which makes them perfect for using up those beautiful fat quarters and remnants you’ve been hoarding. They require minimal hardware — typically just a cord or ribbon — so your material costs stay low. And once you have the basic construction down, you can scale the pattern up or down, mix and match fabrics, add pockets, or embellish to your heart’s content.
The Kato Drawstring Project Bag specifically is designed with a project bag in mind. That means it has enough depth and structure to hold a ball of yarn or a skein without flopping over, but it’s not so oversized that it becomes unwieldy in your tote bag. The flat bottom means your scissors and notion holders don’t roll around uselessly at the bottom — things actually stay organized inside. If you’re a knitter or crocheter who’s tired of your current project getting tangled up in an ill-suited grocery bag, the Kato is genuinely going to change your crafting life.
Materials You’ll Need
One of the wonderful things about the Kato Drawstring Project Bag pattern is that the materials list is straightforward and approachable. You don’t need specialty interfacings or hard-to-find hardware to make this bag look polished and professional.
Here’s a general overview of what you’ll gather before you begin:
Fabric for the outer bag: Choose a medium-weight fabric like quilting cotton, linen, canvas, or a cotton-linen blend. If you’re using a lighter fabric, you may want to back it with a woven fusible interfacing to add body and structure. This is also the fabric that gets to be your “statement” — go bold with a print, keep it classic with a solid, or play with texture using a woven or textured fabric.
Fabric for the lining: The lining can match your outer fabric or contrast with it — both approaches look lovely. A lightweight quilting cotton works beautifully here. The lining adds a clean, finished interior and also provides an additional layer of structure. Some sewists love coordinating their lining with the drawstring cord for a thoughtfully pulled-together look.
Interfacing: Depending on your fabric choice, you may want to use a woven fusible interfacing on the outer fabric pieces. This is particularly helpful if you’re using quilting cotton, which can feel a bit floppy without that added stability. The interfacing is what takes your bag from homemade-looking to handcrafted-looking, so don’t skip this step if your fabric calls for it.
Drawstring cord or ribbon: This is where you get to have a little fun. A cotton rope cord gives a rustic, natural look. A satin ribbon dresses it up. A braided nylon cord is durable and sporty. The choice is entirely yours, and swapping out the cord is one of the easiest ways to make this pattern feel fresh every time you sew it.
Basic sewing supplies: Sharp scissors or a rotary cutter and cutting mat, your sewing machine (or hand sewing supplies if you prefer), an iron and ironing board, pins or wonder clips, a seam ripper for the inevitable oops moment, and a safety pin or bodkin for threading the cord through the casing.
Pattern Overview and Construction Steps
The Kato Drawstring Project Bag is designed so that the construction flows logically from one step to the next. Here’s a walkthrough of what the building process looks like:
Cutting your pieces: You’ll cut your outer fabric, lining fabric, and interfacing pieces according to the pattern dimensions. The pieces include the main body panels and the bottom gusset (or corners, depending on the design approach), which is what gives the bag its flat-bottomed structure.
Fusing the interfacing: Before you sew anything, you’ll fuse your interfacing to the wrong side of the outer fabric pieces. Take your time here and follow the manufacturer’s instructions for your specific interfacing. A good press with steam will ensure the interfacing bonds well and stays put through years of use.
Sewing the outer bag: You’ll stitch the outer fabric pieces together, then create the flat bottom by either sewing a separate bottom panel or boxing the corners. This step is often where first-timers have a little moment of “wait, how does this work?” — and this is exactly where the video tutorial earns its keep. Watching the instructor handle the fabric and demonstrate the technique in real time makes something that sounds complicated on paper feel completely manageable in practice.
Sewing the lining: The lining is constructed in the same way as the outer bag, with one important difference: you’ll leave a gap in the bottom seam for turning. This is your escape hatch for flipping the whole bag right-side out later, so don’t forget it.
Creating the drawstring casing: This is one of the most satisfying parts of the construction. The casing is the channel through which your drawstring cord will run. The Kato pattern gives the bag a clean, intentional look at the top — it’s not just a raw edge gathered with a cord. The casing is neatly incorporated into the bag’s design so the finished product looks like something you could find in a boutique shop.
Assembling the outer bag and lining: With both the outer bag and lining complete, you’ll slip them right sides together, sew around the top opening, then pull everything through the gap you left in the lining bottom. This is the magical moment where your bag suddenly starts to look like a real bag. Once everything is turned and pressed, you’ll close up the lining gap and tuck it neatly inside the outer bag.
Threading the cord: Using a safety pin or bodkin, thread your cord or ribbon through the casing channels. The Kato pattern typically uses a two-cord drawstring system, meaning you thread one cord all the way around from one side and a second cord all the way around from the other side. When you pull both cords, the bag closes evenly and securely — and this two-cord approach is much more satisfying and sturdy than a single-cord design.
Finishing touches: Knot the ends of your cord, trim any stray threads, give the whole bag a final press, and admire your work.
Tips for Sewing the Kato Drawstring Project Bag
Every sewing pattern has its little nuances, and knowing a few insider tips before you sit down at the machine can save you a lot of time and frustration.
Press at every step. Pressing your seams open or to one side as you go keeps everything crisp and aligned. A well-pressed bag looks significantly more professional than one that was sewn without frequent trips to the iron, even if the actual stitching is identical. Don’t skip the iron.
Use a slightly longer stitch length for your main seams. A stitch length of 2.5 to 3mm is often the sweet spot for bag-making. It creates strong, even seams that look clean and hold up to real-world use without puckering.
Clip your corners and curves. If the pattern includes any curves or corner points, clip or notch the seam allowance before turning. This reduces bulk and helps the bag lie flat and take on its intended shape.
Interface generously if you want structure. If you want a bag that really holds its shape, don’t be shy with the interfacing. You can even add a layer of foam stabilizer or batting for extra body if you love a particularly structured look.
Test your fabric combination before committing. If you’re mixing a heavily printed outer fabric with a patterned lining, hold them next to each other before cutting. What works on the bolt doesn’t always work together in a finished bag. Give yourself the chance to swap something out before you’ve already cut everything.
Make multiples. Seriously. Once you’ve made one Kato bag and have the construction in your muscle memory, sewing additional bags goes incredibly quickly. Cut several bags’ worth of fabric in one session and chain-sew your way through the steps. These make wonderful gifts and you’ll want one in every size and fabric combination.
Making the Kato Your Own: Customization Ideas
The Kato Drawstring Project Bag is a pattern with a strong enough design foundation that it invites personalization without requiring it. Here are some ways sewists have made the Kato uniquely theirs:
Add an exterior pocket. A simple patch pocket sewn onto the outer bag before assembly gives you a place for scissors, a phone, or a little notions pouch. Even a 4-by-5-inch pocket makes a big difference in everyday usability.
Try different cord styles. Leather lacing creates a sophisticated, artisan feel. A chunky macramé cord gives boho vibes. A simple grosgrain ribbon keeps it tailored and classic. The cord is the jewelry of the bag, and changing it up is the easiest way to shift the entire aesthetic.
Use a feature fabric strategically. If you have a small piece of a particularly precious fabric — a Japanese print, a Liberty of London design, a fabric with sentimental value — use it as the outer fabric and pair it with a coordinating solid lining. The bag showcases the fabric beautifully without requiring a large amount of it.
Scale it up or down. Once you understand the construction, scaling the pattern to a different size is very achievable. A smaller version makes a sweet little gift bag or notion holder. A larger version could hold a full sweater project or a set of knitting needles comfortably.
Embroider or stamp the outer fabric. A simple embroidered motif or a rubber-stamped design on the outer fabric before sewing adds an artisan touch that elevates the whole bag. Even a hand-embroidered name or initial on the front panel personalizes it instantly as a gift.
Who Is This Pattern For?
The Kato Drawstring Project Bag pattern is genuinely suitable for a wide range of skill levels. A confident beginner who has sewn a few simpler projects and is comfortable with basic machine operation and a straight stitch will find this pattern achievable and rewarding. Intermediate sewists who want a quick, satisfying project between bigger makes will love how it comes together in a single focused sewing session. And experienced sewists will appreciate the clean, thoughtful construction and the fact that this is the kind of pattern that turns out beautifully in fabric combinations that really show off their eye for design.
It’s also a wonderful pattern for teaching. If you’re introducing a teenager or new sewist to bag making, the Kato’s logical construction and relatively small scale make it a great learning project. The video tutorial means your student can always refer back to the instructions without you needing to hover over their shoulder every step of the way.
The Video Tutorial
The video tutorial for the Kato Drawstring Project Bag is a core part of what makes this pattern so accessible. Rather than relying solely on written instructions and diagrams, the video walks you through each stage of construction in real time. You can pause, rewind, and rewatch any section as many times as you need. This is particularly valuable for steps like creating the flat bottom or threading the drawstring casing, where seeing the actual fabric manipulation makes the technique click in a way that words alone sometimes can’t achieve.
Watch the video before you begin sewing — even just a quick first pass through the whole thing gives you an overview of where you’re headed and helps you spot any steps you’ll want to watch again more carefully once you’re at the machine. Many sewists like to keep the video playing on a tablet or phone beside their machine so they can glance over and confirm each step as they go.
Final Thoughts
The Kato Drawstring Project Bag from Sew Modern Bags is one of those patterns that earns its place in your permanent collection — not just as something you make once and move on from, but as a reliable go-to that you’ll return to again and again. It’s fast, it’s satisfying, it produces a genuinely useful finished object, and the combination of a well-written pattern and an excellent video tutorial makes the experience genuinely enjoyable from cutting table to final press.
Whether you’re making one for yourself to corral your current knitting project, sewing up a batch as handmade gifts for the holidays, or finally tackling that stack of beautiful fat quarters you’ve been saving for the right project, the Kato is ready for you. Gather your materials, press your fabric, and let’s get sewing.
