Lace Vest Knitting Pattern: Cropped Button-Up Cotton Vest for a Breezy Summer Look (Sizes S–XL)

There is something deeply satisfying about finishing a garment you made with your own hands, especially when it’s something you’ll actually reach for again and again. This lace vest knitting pattern is exactly that kind of project — a cropped, button-up cotton vest with delicate lace detailing that works just as beautifully over a sundress as it does tucked into high-waisted linen trousers. It’s a sleeveless summer top that bridges the gap between handmade charm and polished, wearable style. And because it comes in sizes Small through Extra Large, it’s a pattern that can live in your project bag whether you’re knitting for yourself or for someone you love.

In this post, I’m walking you through everything you need to know about this pattern: the design inspiration, yarn and needle recommendations, tips for working the lace, advice on fitting, and styling ideas for when you finally cast off that last stitch and sew on those buttons. Whether you’re a confident intermediate knitter looking for your next wardrobe piece or a newer knitter ready to dip a toe into lace for the first time, this pattern was designed with you in mind.

The Design: Where This Pattern Came From

I designed this vest during a stretch of summer heat when I kept reaching for light layers that weren’t too warm but still felt put-together. Tanks and t-shirts were fine, but I wanted something with a little more intention — a layer I could throw on in the morning when the air conditioning is fierce and peel off by afternoon. The cropped silhouette felt right immediately. It hits just at or slightly above the natural waist, which makes it endlessly versatile and flattering on a wide range of body types.

The button-up front came next, because I love the way a button band gives a handmade piece that ready-to-wear feel. There’s something about a neat column of buttons running up the center front that instantly elevates a simple knit into something that looks intentional and refined. I chose a simple lace panel for the body — not so complex that you’re constantly consulting your pattern chart, but interesting enough that the knitting itself stays genuinely enjoyable from cast-on to bind-off.

Cotton was the obvious fiber choice. It’s breathable, it has a beautiful drape that shows off lace beautifully, and it’s the kind of fiber that actually improves with washing. A summer knit in wool would be lovely in theory but impractical in the heat. A good mercerized cotton, on the other hand, gives you that slight sheen, holds its shape, and feels cool against skin even on a warm day.

Materials You’ll Need

Before you cast on, gather everything so the knitting feels smooth and uninterrupted.

Yarn: You’ll need a DK or light worsted weight 100% cotton yarn, or a cotton-blend that behaves similarly. Look for something with a bit of twist and structure — loosely spun cottons can split easily, especially when working lace. Recommended yardage is approximately 400–500 yards for a size Small, scaling up to 600–700 yards for an Extra Large. Good options include mercerized cotton yarns in the DK weight range. Check the label for a gauge of around 22 stitches to 4 inches in stockinette on US 4 or US 5 needles.

Needles: US 4 (3.5mm) or US 5 (3.75mm) circular needles, 24 to 32 inches long. Circular needles are recommended even though this is knit flat, because the long cord holds your stitches comfortably as you work back and forth. You’ll also want a set of double-pointed needles or a short circular in the same size for the armhole edging.

Notions: Six to eight buttons, approximately 12–15mm in diameter. I love a simple shell button for this vest — the organic texture plays beautifully with the lace. You’ll also need a tapestry needle for seaming and weaving in ends, stitch markers, and a few locking stitch markers for tracking pattern repeats. A blocking mat and rust-proof pins are essential for finishing this piece properly.

Gauge: 22 stitches and 28 rows = 4 inches in stockinette stitch, blocked. Please, please swatch. Cotton in particular can be deceptive — your gauge in the ball can shift noticeably once the fabric is wet and blocked. Swatching is especially important here because the cropped length means there isn’t a lot of room for error in the vertical dimension.

Sizing Guide

This pattern is written for sizes Small, Medium, Large, and Extra Large, with finished bust measurements of 34 inches, 38 inches, 42 inches, and 46 inches respectively. The pattern is written with positive ease of approximately 2 inches, meaning the finished garment measures 2 inches more than your actual bust measurement for a relaxed but not oversized fit.

Finished measurements:

Size Small: 34-inch finished bust, 13-inch length from underarm to hem, 8.5-inch shoulder width.

Size Medium: 38-inch finished bust, 13.5-inch length from underarm to hem, 9-inch shoulder width.

Size Large: 42-inch finished bust, 14-inch length from underarm to hem, 9.5-inch shoulder width.

Extra Large: 46-inch finished bust, 14.5-inch length from underarm to hem, 10-inch shoulder width.

If you are between sizes or have a longer or shorter torso, the pattern includes notes on how to adjust the length before the armhole shaping. Because this is a cropped vest, even a small adjustment in torso length can make a meaningful difference in the final fit. I always recommend holding your swatch up to your body and checking the proportions before you commit to a length.

Understanding the Lace Pattern

The lace used in this vest is a simple eyelet lace that even newer lace knitters will find approachable. The repeat is just four stitches wide and eight rows tall, which means once you’ve worked through the repeat once or twice, you’ll likely have it memorized. The pattern creates a vertical vine-like motif with small leaf eyelets that catches the light beautifully in a mercerized cotton.

The lace panels run up the front and back of the vest body, framed by a few stitches of reverse stockinette on either side, which creates a subtle shadow that helps the lace pop. The button bands and armhole edges are worked in seed stitch, which gives the piece a lovely textural contrast and lies flat without curling — an important quality in a garment that needs to look neat and finished at every edge.

A few tips for working lace in cotton:

Cotton has less memory than wool, which means it won’t spring back to hide small mistakes the way a woolly yarn will. This is actually a gift in disguise — it encourages you to slow down and knit with intention. Use a lifeline every ten rows or so, threading a piece of smooth waste yarn through all live stitches with a tapestry needle. If you make a mistake and need to rip back, the lifeline saves you from losing more rows than necessary.

Count your stitches at the end of every lace row, at least in the beginning. Lace math is unforgiving, and a missed yarn-over or an extra decrease will throw off the pattern repeat in ways that become obvious once the piece is blocked.

Read ahead before beginning the armhole shaping. You’ll be working decreases at the same time as the lace pattern continues, and understanding how those two things interact before you start will save you from a lot of confusion mid-row.

Construction Notes

This vest is worked flat in two main pieces — a front and a back — which are then seamed at the shoulders and sides. The button bands are worked as you go, picking up stitches along the front edges after the main pieces are complete. The armhole edges are finished with a simple picked-up border in seed stitch.

The back is cast on at the hem and worked upward in the lace pattern until the armhole shaping begins. Armholes are shaped with a series of bind-offs and single decreases at each edge, then the remaining stitches continue to the shoulder and neck. The back neck is shaped with a short horizontal bind-off, leaving the shoulder stitches live or binding them off for a three-needle bind-off at the seam.

The front is worked in two halves to accommodate the center button band. Each front half begins at the hem and follows the same lace pattern as the back, with the button band stitches worked in seed stitch throughout. One front has buttonholes worked into the band at even intervals, while the other carries the buttons. The pattern tells you exactly where to place each buttonhole based on your size, but I recommend laying the two button bands next to each other before sewing on the buttons, just to double-check spacing visually.

Seaming is done with mattress stitch for the side seams and either mattress stitch or a three-needle bind-off for the shoulder seams, depending on your preference. Mattress stitch is practically invisible and gives the finished piece a very clean, professional look. The armhole edges are finished after seaming, which makes picking up stitches around the armhole curve much more straightforward.

Blocking: The Step That Makes Everything Better

I cannot overstate how important blocking is to the finished look of this vest. Cotton lace before blocking looks somewhat uninspiring — the eyelets are closed up, the fabric looks dense, and the proportions can feel off. After a good wet block, the lace opens up beautifully, the fabric drapes and softens, and the garment grows into the dimensions specified in the pattern.

To block your vest, soak the finished, seamed piece in cool water for at least 20 minutes, until the fiber is fully saturated. Gently squeeze out the excess water — never wring cotton — and roll it in a clean towel to remove more moisture. Then lay it out on your blocking mat, pin it to the finished measurements, and let it dry completely before removing the pins. This can take 12 to 24 hours depending on the thickness of your yarn and the humidity in your space.

Once blocked and dry, your vest will look like an entirely different garment. The effort is absolutely worth it.

Styling Your Finished Vest

One of the things I love most about this design is how versatile it is once it’s actually in your wardrobe. Here are some of the ways I’ve styled my own finished version.

Over a simple white or cream tank top, the lace lets the layer underneath show through in the most charming way. The buttons fastened all the way up gives the look a slightly more formal feel, while leaving the top two or three open keeps it relaxed and easy.

Tucked into a floral midi skirt with sandals, this vest becomes a full summer outfit in minutes. The cropped length sits perfectly at the waist of a high-waisted skirt, and the lace detail adds visual interest without competing with a printed fabric.

Over a swimsuit at the beach or pool, this is the cover-up that gets you from the water to a café without missing a beat. The cotton is quick to dry, the lace is breezy, and the button-front means you can adjust the coverage to whatever feels right.

Layered over a fitted turtleneck in late summer or early fall, the vest transitions into a different kind of outfit entirely — cooler in temperature, slightly more bohemian in feel, and just as wearable into September and October as it was in June.

Yarn Substitution Tips

While I designed this pattern with a mercerized cotton DK in mind, there’s room to experiment. A linen-cotton blend will give you a slightly more rustic, textured look with even better breathability. A bamboo-cotton blend drapes incredibly well and has a beautiful natural sheen. Just be sure whatever you choose is a smooth, tightly spun fiber so the lace stitches read clearly.

Avoid fuzzy or hairy fibers for this pattern — mohair, alpaca, and angora-blend yarns obscure the lace and make the eyelets disappear. Also avoid anything too chunky, as the lace motif was specifically designed for DK weight and will lose its delicacy if scaled up too significantly.

The PDF Pattern

The full pattern PDF includes written row-by-row instructions for all four sizes, a clearly labeled lace chart with a symbol key, detailed notes on construction and seaming, a schematic with all finished measurements, and guidance on substituting buttons and modifying the length. The PDF is formatted for easy printing at home and designed to be readable on a tablet or phone if you prefer digital references at your knitting chair.

This pattern is a wonderful addition to a handmade summer wardrobe and makes a thoughtful gift for the knitter in your life who’s ready to try something a little more wearable and a little more adventurous than their last project. Whether you’re building a capsule wardrobe from your needles up or simply looking for a warm-weather project that feels exciting from start to finish, this cropped lace vest is the pattern you’ll be glad you found.

Cast on, take your time with the lace, block it well, and wear it everywhere. I think you’re going to love it.