Simple Baby Onesie by Sara Kay Hartmann

Simple Baby Onesie

July 2018
DK (11 wpi) ?
17.5 stitches and 13 rows = 4 inches
in double crochet
3.75 mm (F)
271 - 300 yards (248 - 274 m)
One Size: to fit babies 3-9 mos. old with adjustable shoulder straps / Body Circumference: 14” [35.5 cm] (unstretched) / Total Length: 15” [38 cm] or 16” [40.5 cm] depending on which buttons are fastened
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This pattern is available for free.

This pattern is available free on my blog or you can buy the $2 PDF download for an ad-free version.

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

7 flat buttons: 7/8” each

17.5 sts and 13 rows in 4 rows of halfdouble crochet


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.