Cellphone Shoulder Bag Free Knitting Pattern
There is something deeply satisfying about carrying a bag you made yourself. When that bag is small enough to hold just your essentials — your phone, a card or two, some cash, and maybe a lip balm — it becomes one of those everyday items you reach for without thinking. A cellphone shoulder bag is exactly that kind of project: practical, portable, and personal in a way that store-bought bags simply cannot be.
This free knitting pattern will walk you through creating a compact crossbody bag sized perfectly for modern smartphones. Whether you are a beginner looking for a project that goes beyond scarves and dishcloths, or an experienced knitter who wants something quick and satisfying to work up over a weekend, this pattern is designed to meet you where you are. It uses basic stitches, minimal shaping, and a handful of materials you may already have in your stash.
Why Knit a Cellphone Shoulder Bag?
Before we dive into the pattern itself, it is worth talking about why this particular project deserves a place in your knitting queue.
The obvious answer is function. Cellphone shoulder bags — sometimes called phone purses or mini crossbody bags — have become genuinely popular accessories for people who want their hands free without the bulk of a full-sized purse. They work beautifully for quick errands, farmers markets, concerts, travel days when you need your boarding pass at a moment’s notice, and casual outings where a big tote feels like overkill.
But beyond function, knitting your own gives you control over everything. You choose the yarn, so the color palette is entirely yours. You control the gauge, so the sizing fits your particular phone model. You can add or remove rows to make the bag taller or shorter. You can embellish it with buttons, tassels, embroidery, or leave it perfectly clean and minimal. Mass-produced versions of this bag exist in every department store, but none of them will look exactly like yours.
There is also the tactile pleasure of the finished object. A bag knitted from a slightly textured or slightly sturdy yarn has a beautiful hand to it. Wool blends develop a subtle heft. Cotton yarns feel crisp and structured. Chunky fibers knit up into a bag with real body. The material choices here are enormous, and each one produces a finished bag with a different personality.
Materials You Will Need
One of the best things about this pattern is how modest the supply list is. You do not need to purchase anything expensive or specialized to get started.
Yarn: Approximately 100 to 150 yards of worsted weight yarn (also labeled as size 4 on most yarn packaging). This is enough to complete the bag with yarn to spare. Cotton, wool, acrylic, or any blend will work. For a bag that holds its shape well, a cotton or cotton-blend yarn is particularly good. If you want a softer, slightly drapier result, a merino wool or wool-acrylic blend is lovely.
Needles: US size 7 (4.5 mm) straight or circular knitting needles. You can also work this on double-pointed needles if you prefer working in the round, but the flat construction described in this pattern is simpler for most knitters.
Additional supplies: A tapestry needle for weaving in ends, a button or magnetic snap closure (optional but recommended), scissors, and a measuring tape or ruler.
Optional: Stitch markers, a small piece of fabric lining material if you want to line the inside of the bag, and sewing thread and needle for attaching closures or lining.
Gauge
Gauge for this pattern is approximately 18 stitches and 24 rows over 4 inches in stockinette stitch using worsted weight yarn and US size 7 needles.
That said, gauge is flexible here. Because this is a bag and not a garment, getting exact gauge is less critical than it would be for a sweater. A small difference in gauge will simply result in a slightly larger or smaller bag. If your gauge is looser, your bag will be bigger. If it is tighter, the bag will be a bit smaller and more structured.
If you are making this for a specific phone model and want it to fit precisely, it is worth knitting a small gauge swatch before you begin and doing a bit of math to adjust your stitch count. More on sizing adjustments is covered below.
Finished Size
This pattern is sized to fit most standard smartphones, including phones with screen sizes between 6.1 and 6.7 inches. The finished bag measures approximately 4 inches wide and 7 inches tall, with a shoulder strap that can be adjusted to your preferred length.
Abbreviations
For those who are newer to reading knitting patterns, here are the abbreviations used throughout this pattern.
CO — cast on
BO — bind off
K — knit
P — purl
K2tog — knit two stitches together (a simple decrease)
St(s) — stitch or stitches
RS — right side
WS — wrong side
Rep — repeat
The Pattern
Casting On and Knitting the Body
The bag is worked flat in two identical panels, then seamed together on three sides. This construction is beginner-friendly and allows you to keep track of your work easily.
Using your US size 7 needles and chosen yarn, cast on 20 stitches.
Work in 2×2 ribbing (K2, P2 across, repeated every row) for 6 rows. This creates a stretchy, textured top edge that will form the opening of the bag. The ribbing also adds a finished-looking detail without any extra effort.
After completing the 6 ribbing rows, switch to stockinette stitch. Work as follows: knit all right side rows, purl all wrong side rows. Continue in stockinette until your piece measures 7 inches from the cast-on edge, ending with a wrong side row.
Bind off all stitches loosely.
Make a second identical panel the same way.
You now have two rectangular panels, each measuring approximately 4 inches wide and 7 inches tall.
Seaming the Bag
Lay both panels flat with their wrong sides facing outward (so the purl bumps of stockinette are facing you on both panels). Using a tapestry needle and a length of your yarn, seam along the bottom edge and both side edges using a whipstitch or mattress stitch. Leave the top edge — the ribbed edge — open.
Turn the bag right side out. You should now have a neat little rectangular pouch with a clean, structured shape.
If the corners feel a bit boxy or pointy, you can box them by pinching each bottom corner, flattening it so the bottom seam aligns with the side seam, and sewing across about half an inch from the point. This gives the bag a flat, structured base and creates a small amount of interior volume.
Weave in all ends securely.
Adding the Strap
The strap is worked as a long, narrow cord of knitted fabric. You can make it as long or as short as you like depending on whether you want a short shoulder bag (the bag sitting at your hip or waist) or a longer crossbody strap (the bag resting at your opposite hip).
For a standard crossbody strap, cast on 6 stitches.
Work in 1×1 ribbing (K1, P1 across every row) until the strap measures 48 inches long. This creates a flat, slightly stretchy strap that lies nicely against the body. Because ribbing is worked the same on every row, it is also perfectly reversible — there is no right or wrong side to worry about.
If you prefer a shorter shoulder strap, work until the strap measures 24 to 30 inches. A longer crossbody strap typically ranges from 48 to 60 inches depending on your height and preference.
Bind off and weave in ends.
Attach the strap to the bag by folding each end over one of the top side corners of the bag and sewing it securely in place. Use a tapestry needle and a double strand of yarn to sew through all layers several times, then knot firmly. Give the strap a firm tug to test the attachment before carrying anything in the bag.
Adding a Closure
A closure keeps your phone safely inside the bag, especially when you are moving around. There are a few options depending on your preference and skill level.
The simplest option is a button closure. Sew a button to the front panel of the bag, centered just below the ribbed top edge. On the back panel, work a small loop of yarn by crocheting a chain or making a simple yarn loop with a few overhand knots. The loop slips over the button to close the bag.
If you prefer an invisible closure, a magnetic snap is an excellent choice. These are inexpensive, easy to find at craft stores, and very satisfying to use. Attach each half of the snap to the wrong side of the front and back ribbed top edges, centered, following the snap manufacturer’s instructions. The bag will close with a quiet, firm click every time.
A snap button or hook-and-bar closure also works well and adds a slightly more polished look.
Sizing Adjustments
The pattern as written fits most phones with screen sizes up to 6.7 inches. If your phone is smaller or larger, or if you want the bag to have more interior room for additional items, here is how to adjust.
To make the bag wider, add stitches in multiples of 4 to keep the ribbing pattern consistent. Adding 4 stitches to each panel will add approximately one inch of width to the finished bag.
To make the bag taller, simply work more rows before binding off. Each additional inch of length requires approximately 6 additional rows in stockinette at this gauge.
To make the bag smaller — for a kids’ version, or for a coin purse-sized variation — cast on 16 stitches instead of 20 and work to a height of 4 or 5 inches.
Yarn Suggestions and How They Change the Finished Bag
Yarn choice has an enormous effect on the finished look and feel of this project, and it is worth thinking about intentionally rather than just grabbing whatever is on hand.
Cotton yarns produce a bag that is structured, crisp, and holds its shape well even when loaded with a heavy phone. Cotton does not have the stretch or memory that wool does, so the bag stays open easily and the stitches look very clean and defined. The downside is that cotton can feel slightly stiff until it softens with wear and washing. Good options in this category include Lion Brand 24/7 Cotton, Paintbox Cotton Aran, and Drops Paris.
Wool and wool blends create a bag with warmth, slight stretch, and a beautifully rustic texture. Wool blends are generally easier to work with than 100% wool because they are more forgiving with tension. A merino blend will give you softness combined with durability. The slight elasticity of wool makes seaming and finishing easier. Good options include Cascade 220, Lion Brand Wool-Ease, and Paintbox Simply DK (worked with a slightly smaller needle).
Acrylic yarns are the most budget-friendly option and come in an extraordinary range of colors. Modern acrylics have come a long way from the scratchy versions of decades past — many are genuinely soft and pleasant to work with. They are also machine-washable, which is a practical consideration for an everyday bag. Red Heart Soft and Lion Brand Pound of Love are reliable choices here.
Novelty and textured yarns can add beautiful visual interest to a simple bag like this. A slubby linen-cotton blend, a slightly tweedy wool, or even a hand-dyed semi-solid can make the most basic pattern look intentional and artistic.
Tips for a Beautiful Finished Bag
A few small habits will make a real difference in how polished your finished bag looks.
Keep your tension even throughout the project, especially when switching between the ribbing and stockinette sections. Inconsistent tension creates visible rows of looser or tighter fabric that can look unintentional.
When seaming, use the same yarn you used to knit the bag, unless it is very thick or textured, in which case a thinner yarn in a matching color will give you a neater seam.
Weave in your ends with care, threading them through at least an inch of fabric in two different directions so they cannot work their way out with use.
Block your finished panels before seaming if you are using a natural fiber. Blocking evens out stitches and gives the fabric a more polished, professional appearance. To block, wet the knitted pieces in cool water, squeeze out the excess gently without wringing, lay them flat on a towel in the correct dimensions, and allow to dry completely.
If you are adding a fabric lining, cut two pieces of lining fabric slightly smaller than your knitted panels, sew them together with a quarter-inch seam allowance on three sides, slip the lining inside the bag with the raw edges tucked under, and sew it to the inside top edge of the bag using a needle and thread.
Variations to Try
Once you have made one of these bags and understood the basic construction, the variations are nearly endless.
Try working the entire bag in seed stitch (knit 1, purl 1, alternating so that knit stitches sit above purl stitches and vice versa) for a beautifully textured fabric that looks more complex than it is.
Work stripes by carrying two colors of yarn and switching every two rows. The yarn not in use can be carried loosely up the side of the work.
Add a small knitted or crocheted flower to the front panel for a charming embellishment.
Try a taller flap that folds over the front of the bag for a more traditional envelope style.
Knit the strap in a contrasting color for a two-toned effect.
Work the entire bag in a cable panel for a stunning, heirloom-quality version of this simple design.
Final Thoughts
A knitted cellphone shoulder bag is one of those projects that manages to be both genuinely useful and genuinely beautiful. It is small enough to finish in a weekend or two, forgiving enough for beginners, and endlessly customizable for experienced knitters who want to make it their own.
The pattern above gives you a solid, reliable foundation. Once you have made it once, you will likely find yourself returning to it again and again — for gifts, for charity donations, for yourself in a new colorway you cannot resist. It is the kind of pattern that lives quietly in your project folder and gets pulled out regularly, which is really the best thing you can say about any knitting pattern.
Cast on, enjoy the process, and carry something beautiful.
