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The Cranky Baby

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Size guide

Measurements for every piece we make. Two minutes here saves a size exchange later.

Baby bodysuits

Rib-knit combed cotton, lap shoulders, three-snap closure.

SizeWeightHeightChest widthBody length
NB (0-3M)8–12.5 lb17–23"9.5" / 24 cm11" / 28 cm
6M12.5–16.5 lb24–26"10" / 25 cm12" / 30 cm
12M16.5–20.5 lb27–29"10.5" / 27 cm13" / 33 cm
18M20.5–24.5 lb30–32"11" / 28 cm14" / 36 cm
24M24.5–28 lb33–35"11.5" / 29 cm15" / 38 cm

Toddler tees

Pre-shrunk combed ring-spun cotton, classic toddler fit.

SizeTypical ageChest widthBody length
2T1.5–2.5 yrs12" / 30 cm15.5" / 39 cm
3T2.5–3.5 yrs13" / 33 cm16.5" / 42 cm
4T3.5–4.5 yrs14" / 36 cm17.5" / 44 cm
5T4.5–5.5 yrs15" / 38 cm18.5" / 47 cm

Parent tees

Soft unisex jersey. Runs true to size; size up for a relaxed fit.

SizeChest widthBody length
S18" / 46 cm28" / 71 cm
M20" / 51 cm29" / 74 cm
L22" / 56 cm30" / 76 cm
XL24" / 61 cm31" / 79 cm
2XL26" / 66 cm32" / 81 cm

How to measure

Chest width

Lay a garment that fits well flat and measure straight across the chest, just below the sleeves, seam to seam.

Body length

Measure from the highest point of the shoulder (next to the collar) straight down to the bottom hem.

Between sizes?

Size up. Babies grow at ridiculous speeds and cotton likes room. A slightly roomy bodysuit gets months of wear; a snug one gets weeks. Weight and height ranges above are typical guidance, not rules — go by your baby, not the chart.

Still unsure? Email hello@thecrankybaby.com with your baby's age, weight and height and we will recommend a size. And if it still doesn't fit, we handle sizing case by case — see returns.

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