Size guide

How to choose the right Ducksday size for your child

Choosing the right size for your child can be tricky, especially when shopping online. At Ducksday, we want to make it easy for you to find the perfect fit—so your little explorer can move freely and comfortably in every season.

And because we also care about our planet, getting the size right from the start helps avoid unnecessary returns and reduces our environmental footprint. Win-win!

Check our size chart

Every product page on our website includes a detailed size chart with exact measurements. Compare these to your child’s body measurements for the best match.
Be sure to measure:

  • Full height

  • Arm length

  • Inseam (especially for pants and snowsuits)

👉 Note: hip measurements are less relevant for children, while chest circumference is important for women’s clothing.

Compare with clothes you already own

Have a piece of clothing your child recently outgrew? Lay it flat and compare it to the Ducksday size chart.
This helps you decide whether to size up.
Outdoor gear should fit comfortably and allow room for layering underneath.

Pay attention to key measurements

  • Inseam – essential for pants and suits: Measure from the crotch to the ankle for a proper leg fit.
  • Arm length – especially for jackets: Make sure sleeves provide full coverage for weather protection.
  • Height – often the best size indicator: Our size chart also shows size recommendations based on age, making your choice easier and faster.

Designed for a roomy fit

Ducksday clothing is designed with a relaxed, roomy fit—perfect for outdoor play and layering.
That means your child can move, jump, and explore without feeling restricted.

Choose the right size, protect the planet

Choosing the right size from the beginning avoids unnecessary returns—saving time, energy, and emissions.
It’s better for you, better for us, and most importantly, better for the environment.

Still unsure? We’re here to help!

Need advice? Not sure between two sizes?
Send us an email at service@ducksday.com and we’ll help you find the perfect fit—without the hassle.