How to Size Kid's Skis & Boots

Written by colleen larson
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How to Size Kid's Skis & Boots
Kids must ski with the proper boots and skis. (fresh powder skiing image by joseph pankey from

An ill-fitting ski boot will leave you with an uncomfortable child and an uncomfortable ski experience. Although ski boots are made to fit better than in the past, the right selection begins with an accurate fit. You can make a reliable approximation of a kid's skis and boots sizes at home to help you plan your purchases.

Skill level:
Moderately Easy

Things you need

  • Sheet of 8 1/2 x 11-inch paper or square foot of cardboard
  • Pencil
  • Tape measure
  • Kid's ski socks

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  1. 1

    Put ski socks on your child. For an accurate ski boot fit, your child should wear socks designed for skiing.

  2. 2

    Place the sheet of paper or cardboard on the floor. Have the child put one of his feet, covered with the ski sock, on the paper or cardboard. Trace the child's foot on the paper or cardboard with a pencil.

  3. 3

    Measure what you have traced from the tip of the toes to the heel. If you measured in inches, convert the measurement to Mondo Point size or centimetres, using such resources as the Sock and Ski Boot Size Conversion Chart. Choose a boot a half-size larger than the Mondo Point size you have determined after measuring.

    How to Size Kid's Skis & Boots
    Measure the tracing with a tape measure. (tape measure image by MichMac from
  4. 4

    Test the measurement by removing the liner from the shell of the boot. Place the child's foot into the shell of the boot, pushed to the front. Put two fingers between the heel of your child's foot and the shell of the boot. If you cannot fit two fingers between the heel and the shell, the boot is too small. If you can fit more than two fingers, the boot is too big.

  5. 5

    Instruct the child to put on the ski boots with the liners in place. Ask the child to lean forward with his knees bent. He should be able to flex forward easily, with no pinching or sliding.

    How to Size Kid's Skis & Boots
    Determine the size of your child's skis by his weight. (paire de skis image by Magalice from
  6. 6

    Determine the size of your child's skis by his weight. If he is 22.7 to 27.2kg., for example, the ski size would be 100 centimetres or 35.4 inches. Refer to "How to Size Youth Skis and Size Chart" (see Resources).

Tips and warnings

  • Have the child try on boots from different manufacturers to determine which model is best.
  • Check the ski boots for fit every two months.

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