Betis Thermal Velvet Children's Warm Underwear Heating Baby Sleepwear Autumn Clothes Set Autumn Winter Boys Girls

Seamless zero-sense fit, no curling or fraying edges

Invisible cutting with adjustable sleeve length

Stretchable and snug fit around the tummy without tightness

Comfortable round neckline without tightness

Relaxed fit for unrestricted movement

Hetty Green

Annie Pink

Locke Apricot

Amber Blue

Ryan Yellow

| Size | Age Range | Height (cm) | Length (cm) | Chest/2 (cm) | Sleeve Length (cm) | Waist/2 (cm) | Pants Length (cm) | Shoulder Width (cm) |

|-------|------------|-------------|-------------|--------------|--------------------|--------------|-------------------|---------------------|

| 80 | 12-18 mo | 73-80 | 37 | 27.5 | 31.5 | 21 | 46.5 | 22 |

| 90 | 1-2 yrs | 80-90 | 39 | 28.5 | 34.5 | 21.5 | 52.5 | 23 |

| 100 | 2-3 yrs | 90-100 | 42 | 30 | 37.5 | 22 | 58.5 | 24.5 |

| 110 | 3-4 yrs | 100-110 | 45 | 31.5 | 40.5 | 23 | 64.5 | 26 |

| 120 | 4-5 yrs | 110-120 | 48 | 33 | 43.5 | 24 | 70.5 | 27.5 |

| 130 | 5-6 yrs | 120-130 | 51 | 34.5 | 46.5 | 25 | 76.5 | 29 |

| Size | Age Range | Height (cm) | Length (cm) | Chest/2 (cm) | Sleeve Length (cm) | Waist/2 (cm) | Pants Length (cm, with waist) | Shoulder Width (cm) |

|-------|------------|-------------|-------------|--------------|--------------------|--------------|-------------------------------|---------------------|

| 80 | 12-18 mo | 73-80 | 37 | 27.5 | 31.5 | 20.5 | 54 | 22 |

| 90 | 1-2 yrs | 80-90 | 42 | 28.5 | 34.5 | 21 | 60 | 23 |

| 100 | 2-3 yrs | 90-100 | 45 | 30 | 37.5 | 21.5 | 66 | 24.5 |

| 110 | 3-4 yrs | 100-110 | 48 | 31.5 | 40.5 | 22 | 72 | 26 |

| 120 | 4-5 yrs | 110-120 | 51 | 33 | 43.5 | 23 | 78 | 27.5 |

| 130 | 5-6 yrs | 120-130 | - | 34.5 | 46.5 | 24 | 84 | 29 |

Rapid heating within 10 minutes, sustained warmth up to 30 minutes

Meets GB/T29866-2013 standard

Converts moisture to heat with a maximum temperature rise ≥ 5.0°C

30-minute average temperature rise ≥ 3.0°C (data from USBETTAS, subject to environmental variations)

1. Gentle hand wash

2. Water temperature below 40°C

3. Use neutral detergent

4. Air dry naturally, do not tumble dry

All measurements are manual and may have slight deviations

Size selection should be based on child's body shape for best fit