Ones and Zeroes Cardigan
Reversible crochet for twice the impact
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The Pattern
Meet the Ones and Zeroes Cardigan: the statement piece your wardrobe has been waiting for!
This eye-catching design features a clever geometric stitch that looks like a series of zeroes on one side and ones on the other, giving you two distinct looks in one. Fully reversible and effortlessly stylish, it’s as fun to show off as it is to make. Designed with an approachable drop-shoulder construction, comfortable V-neck shaping, and dramatic bishop sleeves, this cardigan is wearable, versatile, and guaranteed to turn some heads!
The Ones and Zeroes stitch is one of 50 reversible stitch patterns from my upcoming book, Interlocking Crochet, so think of this cardigan as your first look inside. The book arrives May 26, 2026, and pre-order links are waiting for you here!
DIFFICULTY
Advanced
MEASUREMENTS
Finished bust circumference: 31.25 (37.5, 43, 48.75) (54.5, 60.5, 66.25) inches or 80 (94, 109, 124) (139, 153, 168) cm
The sizing for this pattern is based on the standard Craft Yarn Council (CYC) measurements.
This cardigan is designed to be worn with up to 6 inches (15 cm) of positive ease around the bust.
All my garment patterns are size-inclusive and are graded for actual bust circumferences of up to at least a 60 inches or 152 cm.
Yarn spotlight
MATERIALS
Yarn
DK weight
Shown in
Main color (the “ones” on the WS): Punk Rock Unicorn Yarns Soul DK (85% Superwash Virgin Merino Wool, 15% Nylon; 241 yds / 220 m per 100 g ball) in color Cold Fusion
Contrast color (the “zeroes” on the RS and the ribbing): Punk Rock Unicorn Yarns Soul DK (85% Superwash Virgin Merino Wool, 15% Nylon; 241 yds / 220 m per 100 g ball) in color Dreamer
Hooks
US 7/4.5 mm (main gauge), US G-6/4.0 mm (secondary), or sizes needed to obtain gauge. I’m a tight crocheter, so you may have to go down in hook sizes.
Notions
Scissors, darning needle, tape measure to measure your body, rigid ruler to measure your swatch, 3 locking stitch markers, safety pins or sewing clips, 2 sets of three 1-inch (2.5-cm) buttons.
YARDAGE
Main color: 5 (6, 6, 7) (8, 9, 10) hanks or 1075 (1300, 1380, 1590) (1890, 2120, 2270) yds / 985 (1190, 1260, 1455) (1730, 1940, 2075) m
Contrast color: 6 (6, 7, 8) (9, 10, 10) hanks or 1240 (1430, 1550, 1745) (2050, 2265, 2390) yds / 1135 (1310, 1415, 1595) (1875, 2070, 2185) m
These yardages are estimated. Scroll down for the tester lookbook with exact yardages from my testers!
I’d LOVE to see your work, so be sure to tag me @CrochetHighway on Instagram and use the #CrochetHighway hashtag for a chance to be featured on my stories!
Video tutorials
This pattern comes with several step-by-step video tutorials, which you can check out right now on my YouTube channel! While you’re there, why not also subscribe to my channel for more interlocking crochet tutorials? The video demonstration is great for learning how to crochet this reversible stitch, and it’s a great opportunity to also check your gauge at the same time.
Part 1: The Ones and Zeroes stitch pattern (crocheting the gauge swatch)
Part 2: Crocheting the Last row, the Edging row, and the Border round
Note: The written pattern also comes with a step-by-step video tutorial on how to crochet the decrease rows for the V-neck shaping.
Yarn Substitution Ideas
Need help picking an alternative yarn? You’re in luck! Here’s a round-up of some great options recommended by my testers and me.
- Alize Lanagold
- Bendigo Woollen Mills Cotton 8 Ply
- Cascade Yarns 220 Superwash
- Hobbii Acacia, Hobbii Friends Extra Fine Merino XL, Hobbii Happy Place, Hobbii Winter Glow
- James C Brett It’s Pure Cotton
- Lion Brand 24/7 Cotton DK, Lion Brand Wool Ease DK
- Loops and Threads Luxe Merino
- Paintbox Cotton DK
- Scheepjes Scrumptious
- Schoppel Wool Zauberball Starke 6
- Stylecraft Special DK
- Yarnart Jeans
Join my Facebook support Group
I proud myself with writing ultra-detailed patterns for you, so that your crocheting experience is as smooth and seamless as possible. But whenever you have a pattern related question, my Facebook support group is the place to ask. There you can also share your WIPs and brag about your FOs with the community!
A word from my testers
Tester lookbook
My patterns would not be so smooth without the input of my team of talented testers. Swipe left & right for more photos of your favorite versions. Want to test my future patterns? Check out how you can become a pattern tester for CrochetHighway!
Mercury (Mercurymade on Ravelry)
Size 3, using 1670 yds of Bendigo Woollen Mills Cotton 8 Ply in Peacock as MC, and 1725 yds of Bendigo Woollen Mills Cotton 8 Ply in Cranberry Juice as CC
Hook size(s): 4 mm;4.5 mm
Mods: None.
Christina (Konakona135 on Ravelry)
Size 2, using 1010 yds of Explorer Knits and Fibers Rockies DK in Barrel Aged Sour as MC, and 860 yds of 29 Bridges Studio Merino SW DK in Linen as CC
Hook size(s): 3.5 mm;4 mm
Mods: I added 4 total button holes instead of 3.
Maria (Maromago on Ravelry)
Size 3, using 1165 yds of BMG Affinitas Coral as MC, and 988 yds of BMG Affinitas Coral as CC
Hook size(s): 3.5 mm;4 mm;4.5 mm
Mods: I added a repeat to the body length and used my MC for the ribbing instead of the CC.
Raeanne (raeanneoday on Ravelry)
Size 4, using 1640 yds of Loops and Threads Luxe Merino as MC, and 1845 yds of Loops and Threads Luxe Merino as CC
Hook size(s): 3 mm;3.5 mm
Mods: None.
Pippa (pippasmakes on Ravelry)
Size 2, using 912 yds of James C Brett Cotton Waves DK in Wild Orchid as MC, and 1175 yds of James C Brett It’s Pure Cotton in Cream as CC
Hook size(s): 2.75
Mods: I did the body length and the sleeve length as the size one because I’m 5 foot and it would’ve been too long otherwise.
Kat (Theskippinghare on Ravelry)
Size 4, using 1258 yds of Scheepjes Scrumptious as MC, and 1312 yds of Scheepjes Scrumptious as CC
Hook size(s): 3 mm
Mods: None.
Size 4, using 1370 yds of Willow and Lark Ramble as MC, and 1500 yds of Schoppel Wool Zauberball Starke 6 as CC
Hook size(s): 3.5 mm
Mods: I did the ribbing in my MC (300 yds) and I have added this yardage into the CC yardage.
Size 1, using 915 yds of Hobbii Happy Place Solid as MC, and 990 yds of Hobbii Happy Place Melange as CC
Hook size(s): 3.5 mm;4 mm
Mods: None.
Poornima (Poornimagv on Ravelry)
Size 2, using 1090 yds of Heartbeats Merino Super Fine as MC, and 1145 yds of Heartbeats Merino Super Fine as CC
Hook size(s): 4 mm;4.5 mm
Mods: I preferred a longer cardigan, so I added an extra repeat to the back and front panels. I added 2 extra SCs on the vertical edges of all the panels for ease.
Kattie Lee (emsfiregirl on Ravelry)
Size 5, using 1450 yds of Yarn Bee Soft & Sleek DK as MC, and 1850 yds of Yarn Bee Soft & Sleek DK as CC
Hook size(s): 3.25 mm for main and 2.75 mm for secondary
Mods: I used my main gauge hook for the ribbing instead of the secondary hook.
Sabrina (beank0727 on Ravelry)
Size 1, using 1093 yds of Big Twist Value Pound+ as MC, and 950 yds of Big Twist Value Pound+ as CC
Hook size(s): 3.5 mm;4 mm
Mods: I went with a worsted weight because of how cold it has been in my area. The finished measurements of my cardigan are therefore much larger than the pattern.
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