1. Measure your child’s current swimsuit by laying it flat. All measurements are taken with the garment lying flat, not stretched.
2. Take key measurements.
   • One-piece: measure from the top of the shoulder to the crotch, and across the bust and hips.
   • Two-piece: measure across the bust, waist, and hips.
3. Compare with our size chart. The chart shows the garment’s flat (unstretched) measurements. Our premium fabric comfortably stretches 2–4 cm when worn for the perfect fit.
4. Allow for natural variation. As each style is unique, please allow 1–2 cm difference between designs.
5. Use age as a general guide. Olga Valentine sizes follow Australian standard children’s sizing, which usually aligns with age — though fit may vary depending on your child’s proportions. When in doubt, we recommend sizing up for extra length or coverage.

Girls’ Swimwear Size Chart