Simple Baby Onesie ~ A Free Crochet Pattern

Hello Dear Crocheters,

I have yet another sweet little baby project to share with you today! You can use the pattern free below or buy the $2 PDF download in my Ravelry shop for an ad-free experience.

Embellish your Simple Baby Onesie by appliqueing a crocheted motif on the chest–I used the Bright Rainbow pattern from my Tiny Happy Crochet collection.

My Simple Baby Onesie was designed with babies and mommies in mind! Machine-washable DK weight yarn is soft and cozy while being lightweight enough for all seasons to keep baby comfy. The pattern features adjustable shoulder straps for longer wear as baby grows along with crotch buttons for easy diaper-changes. Customize your onesie with buttons or sew on a sweet crochet applique to suit boys or girls.

 



 

Size
To fit babies 3-9 mos. old with adjustable shoulder straps

Yarn
Baby Bee Sweet Delight (60% Acrylic & 40% Polyamide; 377 yd [344 m] / 4 oz [113 g]): #66 Surf Baby, 1 skein

For Yarn Substitutions:
271 yd [248 m] / 2.9 oz [81 g] #3 Light (DK weight) yarn

 



 

Hook
Size F/5 [3.75 mm]

 



 

Notions
7 flat buttons: 7/8” each

 



 

Gauge
17.5 sts and 13 rows in 4 rows of half-double crochet

 



 

Notes
• This onesie is worked seamlessly from the bottom up.
• The back and front crotch pieces are worked separately before being joined for working the body in turned rounds, then the pattern divides to work the back and front chest and straps.
• This onesie has 2 sets of adjustable buttons to attach the straps at the back of the onesie and allow for longer wear as baby grows. It also buttons at the crotch for easy diaper changing.

 
Special Abbreviations
LC (long chain): This pattern uses a single long chain instead of the conventional 2-chain half double crochet turning chain worked as follows: Draw up a loop to the height of the hdc about to be worked, work first hdc in same st. This eliminates the need for a turning chain and the unsightly gaps that accompany the standard turning chain.

INSTRUCTIONS
Back Crotch Flap
Ch 19.
Row 1 (RS): LC, work hdc in each foundation ch across, turn…19 hdc.
Row 2 (Buttonhole Row): LC, hdc in first 2 sts, *ch 3, sk 3, hdc in next 3 hdc; rep from * twice, hdc in last 2 sts, turn.
Row 3: LC, hdc in each hdc, 3 hdc in each 3-ch sp across…19 hdc.
Row 4 (increase row): LC, hdc in first st, 2 hdc in next st, hdc in each st to last 2 sts, 2 hdc in next st, hdc in last st, turn…21 hdc.
Row 5: LC, hdc in each hdc across, turn.
Rows 6-9: Rep Rows 4-5.
Rows 10-13: Rep Row 4…33 hdc made at the end of Row 13.
Row 14: LC, hdc in each hdc across, turn.
Fasten off. Break yarn leaving 6” tail.
Set Back Flap aside while Front Flap is worked.



Front Crotch Flap
Ch 19.
Row 1 (RS): LC, work hdc in each foundation ch across, turn…19 hdc.
Rows 2-9: LC, hdc in each st across, turn.
Row 10: LC, hdc in first st, 2 hdc in next st, hdc in each st across to last 2 sts, 2 hdc in next st, hdc in last st, turn…21 hdc.
Rows 11-16: Rep Row 10…33 hdc made at the end of Row 16.
Row 17: LC, hdc in each st across, do not turn.

Onesie Body (worked in turned rounds)
With RS of Back Flap facing:
Back Flap Joining Round: LC, hdc in each st of Back Flap, sl st to first hdc of Front Flap Row 17 to join round, turn…66 hdc.
Round 18 (WS): LC, hdc in each hdc around, turn.
Rounds 19-42: Rep Round 18, turning with each row and working from the Right Side or Wrong Side as appropriate (odd rows are Right Side rows, even rows are Wrong Side rows).

Chest Flap
Row 1: Sl st in first 3 sts, LC, hdc in same st, hdc in next 28 sts, turn…29 hdc.
Row 2: LC, hdc in first hdc, hdc2tog, hdc to last 3 sts, hdc2tog, hdc in last st, turn…27 hdc.
Row 3: Rep Row 2…25 hdc.
Rows 4-7: LC, hdc in each st across, turn.

Right Shoulder Strap
Row 1: LC, hdc in first st and next 5 sts, hdc2tog over next 2 sts, turn…7 sts.
Row 2: LC, hdc2tog over first 2 sts, hdc in next 5 sts, turn.
Rows 3-16: LC, hdc in each st across, turn.
Fasten off. Break yarn leaving 6” tail.

Left Shoulder Strap
With WS of Chest Flap facing, join yarn in 7th hdc from left chest corner, pull up a loop.
Row 1: LC, hdc2tog over first 2 sts, hdc in next 6 sts, turn…7 sts.
Row 2: LC, hdc in first 5 sts, hdc2tog over last 2 sts, turn.
Rows 3-16: LC, hdc in each st across, turn.
Fasten off. Break yarn leaving 6” tail.

 



 
Upper Back Flap
With RS facing, join yarn in 3rd hdc to left of Chest Flap (leaving 2 hdc unworked) and pull up a loop.
Row 1: LC, hdc in same st and next 28 sts, turn…29 hdc.
Row 2: LC, hdc in first st, hdc2tog over next 2 sts, hdc in each st to last 3 sts, hdc2tog over next 2 sts, hdc in last st, turn…27 hdc.
Row 3: Rep Row 2…29 hdc.
Rows 4-5: LC, hdc in each st across, turn.
Row 6 (buttonhole row): LC, hdc in first st, hdc in next st, ch 3, sk 3 hdc, hdc in next hdc and each hdc across to last 5 hdc, ch 3, sk 3 hdc, hdc in last 2 hdc, turn…2 buttonholes made.
Row 7: LC, hdc in each hdc, 3 hdc in each 3-ch sp across, turn…29 hdc.
Fasten off. Break yarn leaving 6” tail.

Edge Buttonholes
(Work for all 7 buttonholes)

10
With RS of Onesie facing, join yarn in corner of buttonhole and pull up a loop. Work 11 sc around buttonhole opening, sl st to first sc made to join round. Fasten off. Break yarn leaving 6” [15 cm] tail.

 



 
Finishing
Weave in yarn ends. Sew buttons in place. Steam lightly to set stitches.

SCHEMATIC
A – Body Circumference: 14” [35.5 cm] (unstretched)
B – Crotch Length: 3.5” [9 cm]
C – Neck Width: 3” [7.5 cm]
D – Total Length: 15” [38 cm] or 16” [40.5 cm] depending on which buttons are fastened

11 schematic photo

 


STANDARD ABBREVIATIONS

” inches
* repeat the instructions following
the single asterisk as directed
ch chain
ch-sp chain space
cm centimeters
g grams
hdc half double crochet
hdc2tog half double crochet 2 together
LC long chain (see Special Abbreviations)
m meters
mm millimeters
oz ounces
rem remaining
rep repeat
rnd(s) round(s)
RS Right Side
sc single crochet
sk skip
sl st slip stitch
st(s) stitch(es)
WS Wrong Side
yds yards

If you enjoy my patterns and want to support more free patterns, please consider buying the $2 PDF download or click a few ads here on my site. I really appreciate your support!

If you make a Simple Baby Onesie and want to share it with me, use #sarakayhartmann on IG! I’d love to hear from you about my patterns. My goal is to give you joy in your crochet experiences, so I hope this onesie is a fun project for you.

Yours in Stitches,

Sara



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