👶 Baby Snap Overalls — PDF Sewing Pattern
6 sizes, 0–3 months to 3 years · Snap crotch for diaper changes · Snap side openings · Two-position snap straps · A4, US Letter and A0 · Layered files
Baby overalls look adorable for exactly as long as it takes to need a diaper change. Then you are undressing a wriggling baby on a changing mat. Not with these.
The whole inner leg opens on a row of snaps, from one ankle to the other, so a change takes seconds and the overalls stay on. Both sides open on two snaps under the arms, so the overalls go on over the head of a baby who will not hold still. The straps fasten with snaps too, in two positions, so you can lengthen them as baby grows and get a few more months out of every pair. There are no buttons anywhere on this pattern, which means nothing small to come loose and end up in a mouth.
It is a quick, satisfying sew and one of the nicest handmade gifts a new baby can get. The files are layered: switch on your size, print that one only.
✔️ 6 sizes: 0–3M · 3–6M · 6–12M · 12–18M · 18–24M · 3Y
✔️ Step-by-step illustrated PDF instructions, including where to place and how to set every snap
✔️ Print-at-home files in A4 (14 pages) and US Letter (15 pages)
✔️ A0 copyshop file (1 sheet) and projector file
✔️ Layered pattern files — print one size at a time
✔️ Snap positions marked on the pattern pieces
📏 Size Chart — Body Measurements
0–3M: height up to 61 cm (24″) · chest 41 cm (16.1″) · waist 41 cm (16.1″) · hip 42 cm (16.5″)
3–6M: height up to 67 cm (26.4″) · chest 44 cm (17.3″) · waist 43 cm (16.9″) · hip 45 cm (17.7″)
6–12M: height up to 74 cm (29.1″) · chest 47 cm (18.5″) · waist 46 cm (18.1″) · hip 48 cm (18.9″)
12–18M: height up to 80 cm (31.5″) · chest 49 cm (19.3″) · waist 47 cm (18.5″) · hip 50 cm (19.7″)
18–24M: height up to 86 cm (33.9″) · chest 51 cm (20.1″) · waist 49 cm (19.3″) · hip 52 cm (20.5″)
3Y: height up to 98 cm (38.6″) · chest 54 cm (21.3″) · waist 51 cm (20.1″) · hip 56 cm (22″)
Choose by height first. If your baby falls between two sizes, size up — the strap snaps give you room to adjust.
0–3M: chest 53 cm (20.9″) · length, bib top to hem 43 cm (16.9″) · leg opening 22 cm (8.7″)
3–6M: chest 56 cm (22″) · length, bib top to hem 48 cm (18.7″) · leg opening 23 cm (9.1″)
6–12M: chest 59 cm (23.2″) · length, bib top to hem 53 cm (20.9″) · leg opening 25 cm (9.8″)
12–18M: chest 61 cm (24″) · length, bib top to hem 58 cm (22.6″) · leg opening 26 cm (10.2″)
18–24M: chest 63 cm (24.8″) · length, bib top to hem 62 cm (24.4″) · leg opening 27 cm (10.6″)
3Y: chest 66 cm (26″) · length, bib top to hem 70 cm (27.8″) · leg opening 29 cm (11.4″)
👶 Square bib with snap straps, two strap positions
🔓 Full snap opening along the inner legs and crotch
↔️ Snap side openings for easy dressing
〰️ Roomy seat over a cloth or disposable diaper
👖 Relaxed legs with cuff bands
✂️ 3/8″ (1 cm) seam allowance included
🗂️ Layered files — switch on your size, print that one only
📊 Difficulty: beginner — setting snaps is explained step by step
0–3M: fabric 0.7 m (⅞ yd) · 17 snap sets
3–6M: fabric 0.8 m (⅞ yd) · 19 snap sets
6–12M: fabric 0.8 m (⅞ yd) · 21 snap sets
12–18M: fabric 0.9 m (1 yd) · 21 snap sets
18–24M: fabric 0.9 m (1 yd) · 23 snap sets
3Y: fabric 1.0 m (1⅛ yd) · 25 snap sets
Fabric: soft woven needlecord or fine corduroy, cotton twill, chambray, light denim or linen, 44″ to 60″ (112 to 150 cm) wide
Plastic snaps (size 20, 12 mm) or metal snaps, with a snap press or snap pliers
Lightweight fusible interfacing: 1/2 yd (50 cm)
Sewing machine, scissors or rotary cutter, pins or clips
1️⃣ Buy the pattern — your download link appears straight away
2️⃣ Open the layered file, switch on your size and print it at 100%
3️⃣ Cut and follow the illustrated instructions
4️⃣ Set the snaps and get it on the baby 👶
Baby shower and new baby gifts · Everyday wear that survives crawling · Gender-neutral colours for a gift before you know · Sewing a matching pair for twins · Making the next size up before the last one is outgrown
This is a digital PDF sewing pattern. Nothing physical will be shipped. Your files are available to download immediately after purchase.
Set every snap following the snap maker's instructions and give each one a firm pull test before the garment is worn. Check the snaps regularly.
Print at 100% or Actual Size — never Fit to Page — or your sizes will not come out correctly. Colours may look slightly different from one screen to another. This listing is for the pattern only, not finished overalls.
