How to Add a Fabric Lining to a Knit or Crochet Bag
If you’ve ever knitted or crocheted a bag, you know the satisfaction of finishing that last stitch and holding your creation in your hands. But you’ve also probably noticed the problem: yarn has stretch, and bags made from yarn have a tendency to sag, lose their shape, and let small items slip through the gaps between stitches. Adding a fabric lining is the solution that transforms a charming handmade bag into a truly functional everyday accessory.
Whether you’re lining a market tote, a drawstring pouch, a structured handbag, or a boho-style bucket bag, this guide will walk you through the entire process from choosing your fabric to sewing the finished lining inside your project. You don’t need to be an experienced seamstress to do this. If you can sew a straight line, you can add a professional-looking lining to any knit or crochet bag.
Let’s get into it.
Why You Should Always Line Your Knit and Crochet Bags
Before we get into the how-to, it’s worth talking about the why, because the benefits of lining a yarn bag go far beyond aesthetics.
Structure and shape retention. Yarn is flexible and forgiving, which is wonderful when you’re working with it but can be frustrating once the bag is in use. A fabric lining gives the bag an internal skeleton of sorts, helping it hold its intended shape even when it’s loaded down with your phone, wallet, keys, and everything else you carry around.
Prevents items from falling through. If you’ve crocheted with a looser tension or worked an open-stitch pattern, you’ve probably experienced the horror of watching a lip balm or hair tie disappear through the bottom of your bag. A lining creates a solid interior surface so nothing escapes.
Protects delicate yarn. Lipstick, pens, hand cream, and the general chaos of a handbag interior can stain or damage the yarn from the inside. A lining acts as a barrier between your carefully chosen yarn and the mess of everyday life.
Adds a polished, professional finish. Lined bags look more intentional and refined. If you’re selling your handmade bags at a craft fair or gifting them, a lining elevates the piece significantly and signals the care you put into your work.
Allows you to add pockets. One of the best reasons to line a bag is that you can easily add interior pockets to the lining before attaching it. This turns your handmade bag into something genuinely practical.
What You’ll Need
Before you sit down to work, gather your supplies. Having everything on hand will make the process smooth and enjoyable.
Your finished knit or crochet bag. The bag should be completely finished, blocked if applicable, and any handles or straps should already be attached or at least planned out. Weave in all your ends before you begin.
Fabric for the lining. More on this in the next section, but you’ll need enough to cut the front, back, and base of the lining, plus a little extra for seam allowances.
Matching or coordinating thread. Choose a thread color that either matches the lining fabric or the yarn of your bag for the final hand-stitching step.
Sewing machine or needle and thread. A sewing machine will make the job faster and give you cleaner, sturdier seams, but this project is absolutely doable by hand if you don’t have a machine. Use a backstitch for hand-sewn seams to ensure strength.
Scissors or a rotary cutter and cutting mat. Sharp scissors are essential for clean fabric edges.
Pins or wonder clips. Both work well for holding fabric in place as you sew.
Measuring tape and a fabric marker or chalk. For taking accurate measurements and marking your fabric before cutting.
An iron and ironing board. Pressing your seams and folding the top edge of the lining before insertion makes everything neater and easier to handle.
Optional: fusible interfacing. If your bag needs even more structure, you can iron interfacing to the wrong side of your lining fabric before sewing it together. This is especially useful for larger bags or those made with a very open stitch pattern.
Choosing the Right Fabric for Your Bag Lining
Fabric selection is one of the most fun parts of this project, but it also matters practically. Not all fabrics behave the same way, and some will work much better than others for lining a handmade bag.
Cotton quilting fabric is the most popular choice among crafters who line knit and crochet bags, and for good reason. It’s easy to cut and sew, comes in an enormous range of colors and prints, holds its shape well, and is relatively inexpensive. If you’re new to lining bags, start with quilting cotton.
Canvas or duck cloth is a heavier option that adds significant structure. If you’re making a large tote or a bag that will carry heavy items, canvas lining will help the bag maintain its form and handle the weight. It can be a little harder to sew by hand, so a machine is more helpful here.
Linen gives a beautiful, natural, slightly textured finish. It’s breathable and sturdy, and it complements natural fiber yarns like cotton or linen beautifully.
Twill or denim works wonderfully for casual, rugged-style bags and adds excellent durability.
Satin or silk creates a luxurious interior for dressier bags like evening clutches or wedding-style accessories. Keep in mind that these fabrics can be more slippery and trickier to work with.
Fat quarters from a quilting shop are often the perfect amount of fabric for smaller bags and come pre-cut in coordinating prints, making it easy to find something that works with your yarn colors.
Avoid fabrics that are too stretchy, like jersey knit, because they’ll behave unpredictably when you’re trying to attach them to the interior of the bag. The lining should add stability, not more stretch.
How to Measure Your Bag for a Lining
Accurate measuring is the key to a lining that fits well. The goal is to create a fabric bag that is just slightly smaller than the interior of your yarn bag so it sits neatly inside without puckering or pulling.
Start by measuring the interior dimensions of your bag. Use your measuring tape to find:
The width of the bag at the widest point inside. For most rectangular totes, measure from inside seam to inside seam across the top.
The height of the bag from the inside bottom to the top edge where you’d like the lining to sit. For most bags, you’ll want the lining to sit just below the top edge so it’s hidden when looking at the bag from outside.
The depth of the bag, meaning how deep it is from front to back at the base.
Once you have these measurements, you’ll translate them into fabric pieces. For a simple rectangular or tote-style bag, you typically need two pieces for the front and back panels, plus one piece for the base.
For the front and back panels: cut two rectangles that are your interior width measurement plus 1 inch for seam allowance on both sides, and your interior height measurement plus 1 inch for the bottom seam and 1 inch for the top fold.
For the base: cut a rectangle that is your interior width measurement plus 1 inch, by your interior depth measurement plus 1 inch.
For a bag with gussets (side panels that give it dimension), cut two additional side panel rectangles.
If your bag is round at the base, you’ll cut a circular piece for the bottom. Trace the interior of the bag directly onto paper to get an accurate template, then add a half-inch seam allowance all around.
Step-by-Step: Sewing the Lining
Now that you have your fabric cut to size, it’s time to sew the lining together. This is essentially like sewing a small fabric bag.
Step 1: Press your fabric. Before you do anything else, iron all your fabric pieces. This makes them easier to handle and ensures accurate stitching.
Step 2: Pin and sew the side seams. Place the two front and back panels together with right sides facing each other. Pin along both side edges and sew with a half-inch seam allowance. If you’re using a sewing machine, a stitch length of about 2.5mm works well for most woven fabrics.
Step 3: Attach the base. Pin the bottom edge of the sewn side panels to the base piece, right sides together, and sew all the way around. If your base is rectangular, you’ll need to clip the corners slightly to help the seam lie flat. If your base is round, you’ll need to clip small notches all around the curved seam to help it ease into shape.
Step 4: Sew the side panel seams if applicable. If your bag has gussets, sew the side panels to the front and back panels before attaching the base.
Step 5: Trim and press the seams. Trim any excess seam allowance and press all seams open or to one side. A well-pressed lining sits much more neatly inside the bag.
Step 6: Add pockets if desired. This is the point where you can sew an interior pocket onto the lining before inserting it. Simply cut a rectangle of fabric, fold and press the top edge under by half an inch and sew it down, then fold all other edges under and press. Position the pocket on the interior of one of the lining panels, pin it, and stitch around the sides and bottom, leaving the top open. You can divide the pocket into sections by sewing vertical lines through it.
Step 7: Fold and press the top edge. Turn the lining so the wrong side is facing out. Fold the top edge down by about half an inch and press with the iron. This creates a clean finished edge at the top of the lining that will make hand-stitching it to the bag much easier.
Inserting and Attaching the Lining to Your Bag
This is the part that takes the most care, because it’s what the finished bag will look like from the inside.
Step 1: Turn the lining right side out. The printed or nice side of the fabric should be facing outward. Drop the lining inside your yarn bag and position it so the folded top edge sits about a quarter inch below the top edge of the bag.
Step 2: Adjust and pin. Take your time arranging the lining so it sits evenly all the way around. The corners should align with the corners of the bag, and the sides should lie flat against the interior. Use pins or clips to hold the folded top edge of the lining against the interior of the bag near the top.
Step 3: Hand-stitch the lining in place. Thread a needle with a length of thread that matches your lining fabric or your yarn. Use a slip stitch or whip stitch to sew the folded edge of the lining to the interior of the bag. Work all the way around, catching the yarn of the bag and the folded edge of the lining with each stitch. Keep your stitches small and consistent, and try not to let them show on the outside of the bag.
If your bag has handles that are attached at the top, you’ll need to work around them carefully. Fold the lining fabric around each handle attachment point and stitch it down securely. This area gets the most stress from use, so take extra care to stitch it firmly.
Step 4: Secure the lining at the base if needed. For larger bags or those with a firm base panel, you may want to tack the lining to the base of the bag with a few stitches at the center to keep it from shifting around during use.
Tips for a Beautiful Finished Result
A few extra pointers can make the difference between a lining that looks homemade and one that looks like it came from a boutique.
Press everything. Every seam, every fold, every edge. The iron is your best friend throughout this project.
Take your time with the hand-stitching. Rushing this final step is the most common reason a lining ends up looking sloppy. Small, even stitches make a huge difference.
Match your thread thoughtfully. If your yarn is a warm cream and your lining is a navy print, consider whether you want the stitches to blend into the lining or the bag. In most cases, a thread that matches the lining fabric is the better choice because it becomes invisible against the interior.
Use interfacing for floppy bags. If your bag is made from a chunky, heavy yarn that causes the bag to sag dramatically, try fusing a medium-weight interfacing to the wrong side of your lining fabric before sewing it. This adds significant structure.
Pre-wash your fabric. Before cutting, wash and dry your lining fabric the same way you plan to wash the finished bag. This prevents the lining from shrinking and puckering after the bag is completed.
Common Questions About Lining Knit and Crochet Bags
Do I need a sewing machine? Not necessarily. The entire project can be done by hand using a backstitch for the seams and a slip stitch for attaching the lining to the bag. It will take longer, but it’s entirely possible.
Can I line a bag that’s already been used and washed? Yes. Just make sure the bag is clean and fully dry before you begin. Block or reshape it if needed, and proceed with the measuring and lining process as described above.
What if my bag has a zipper? If your bag has a zipper at the top, you’ll need to incorporate it into the lining. This is a slightly more advanced technique, but the basic idea is to sew the top edge of the lining to the zipper tape before inserting the lining into the bag. There are many good tutorials specifically for zipper bag linings if you’d like to take that route.
How do I line a bag with a very irregular shape? Use paper to create a template of each interior panel before cutting your fabric. Press the paper flat against each inner surface of the bag and trace its outline, then add seam allowance and use those pieces as your cutting guide.
Can I use felt instead of woven fabric? Felt is a popular choice for lining small bags and pouches because it doesn’t fray, so you don’t need to hem the edges. It’s not as durable as woven fabric for everyday bags, but for a gift bag, a small cosmetic pouch, or a decorative basket, it works perfectly well.
Final Thoughts
Adding a fabric lining to a knit or crochet bag is one of those finishing techniques that seems intimidating at first but quickly becomes second nature. Once you’ve done it once, you’ll want to line every bag you make. The difference in functionality and appearance is dramatic, and the process itself is genuinely satisfying.
The beauty of this technique is how customizable it is. You can choose a lining that coordinates perfectly with your yarn, add pockets exactly where you need them, and use interfacing to achieve whatever level of structure your design calls for. Every bag you make can have a completely unique interior that reflects your personal style just as much as the yarn and stitch pattern on the outside.
So the next time you bind off that final row, don’t stop there. Take a trip to the fabric store, pick out something you love, and spend an afternoon giving your handmade bag the interior it deserves. Your future self, the one who can actually find her keys, will thank you.
