Product DESCRIPTION: Three-hole baby t-shirt made of stretchy cotton, soft, cool, very good sweat absorption - self-regulating body temperature, absolutely safe for baby's sensitive skin. Simple Three-Hole T-Shirt, Bright Colors, Comfortable Stretch Absorbent Fabric For Babies To Wear At Home In Summer The product is also favored for its reasonable price, the seam is extremely solid and delicate, both beautiful and ensuring perfect durability over time. Size INSTRUCTIONS (Please Choose according to your measurements for the most accurate, weight is for reference only) --- Plain shirt measurements: Size 1 corresponds to 8-10kg: shirt length 27cm, armpit width 27.5cm Size 2 corresponds to 10-12kg: shirt length 29cm, armpit width 29cm Size 3 corresponds to 12-14kg: shirt length 30.5cm, armpit width 30cm Size 4 corresponds to 14-16kg: shirt length 32cm, armpit width 31cm Size 5 corresponds to 16-18kg: shirt length 33.5cm, armpit width 32cm Size 6 or 1X corresponds to 18-20kg: shirt length 35cm, armpit width 33cm Size 7 or 2X corresponds to 20-22kg: shirt length 37cm, armpit width 34cm Size 8 or 3X corresponds to 22-24kg: shirt length 38cm, armpit width 36cm Size 9 or 4X corresponds to 24-26kg: shirt length 39cm, armpit width 37cm Size 10 or 5X corresponds to 26-28kg: shirt length 41cm, armpit width 38cm Measurement error +-2-3cm --- Printed shirt measurements Size 1 corresponds to 8-10kg: shirt length 35cm, armpit width 28.5cm Size 2 corresponds to 10-12kg: shirt length 38cm, armpit width 29cm Size 3 corresponds to 12-14kg: shirt length 39.5cm, armpit width 31cm Size 4 corresponds to 14-16kg: shirt length 41cm, armpit width 32cm Size 5 corresponds to 16-18kg: shirt length 43cm, armpit width 35cm Measurement error +-2cm Standard form size chart, correct number of kilograms, customers just need to choose the standard according to the size chart, if the baby steals round or tall, mom jumps 1 size, or if you like to wear loose, minus the size to help the shop Oh