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Size Guide - Kids SkinSense™ Seamless Underwear Collection

How to Choose Your Size

Finding the perfect fit is easy, simply measure your child’s waist or hips and match it to the chart below.

Our Underwear & Crop Tops are made from a beautifully soft, stretchy modal fabric that gently moulds to the body without digging, squeezing, or riding up.

✅ Step 1:  Measure around the natural waistline, the fullest part of the hips, & chest (A soft tape measure works best, but you can also use a piece of string and measure it against a ruler.

✅ Step 2: Match your measurement to the chart. Because our fabric has incredible stretch and recovery, if your child is between sizes (especially new-tween), we recommend choosing the smaller size. This gives a secure, comfy fit without pressure.


Girls’ Underwear – Waist & Recommended Hips

Size Full Waist Recommended Hips
4–6 47 cm 52–58 cm
7–9 52 cm 58–64 cm
10–12 57 cm 64–70 cm
12–14 62 cm 70–76 cm

Boys’ Underwear (Trunk Style) – Waist & Recommended Hips

Size Full Waist Recommended Hips
4–6 48 cm 54–60 cm
7–9 53 cm 60–66 cm
10–12 58 cm 66–72 cm
12–14 64 cm 72–78 cm

Girls’ Crop Top – Full Chest & Band

Size Full Chest Full Band
4–6 51 cm 46 cm
7–9 56 cm 51 cm
10–12 61 cm 56 cm
12–14 66 cm 61 cm

🩵 Fit Tips

  • Extremely soft, stretchy fabric, designed to gently shape to the body.
  • If your child is between sizes, choose the smaller size.
  • Ideal fit: firm on the body, soft on the skin, no digging.
  • Sizing up may feel loose or cause slipping or bunching for active kids.