How to Measure Your Child for Uniform Sizing

Ordering uniforms online is convenient — but only if the sizing is right. A few minutes with a soft measuring tape can save you the hassle of returns and exchanges. Here's exactly how to measure your child for the most common uniform pieces.

What You'll Need

• A soft fabric measuring tape (not a metal one)
• A helper (it's much easier with two people)
• Your child in lightweight clothing or just a t-shirt and shorts

Key Measurements to Take

Chest Wrap the tape around the fullest part of the chest, just under the arms. Keep it snug but not tight — you should be able to slip two fingers underneath. This measurement is used for polos, dress shirts, and jackets.

Waist Measure around the natural waist — the narrowest part of the torso, usually just above the belly button. This is used for pants, skirts, and shorts. Many school uniform pants have adjustable waistbands, which gives you a little flexibility.

Hips Measure around the fullest part of the hips and seat. This matters most for skirts, skorts, and pants.

Inseam Have your child stand straight. Measure from the crotch seam down to the ankle bone. This determines pant length.

Height & Weight Many uniform brands size by height and weight rather than chest/waist alone — especially for younger children. Always check the brand's specific size chart.

Tips for Getting the Right Fit

• Size up for growth. Children grow fast. If your child is between sizes, go up — especially for items they'll wear all year.
• Check the size chart for each brand. Sizing varies between manufacturers. A size 10 in one brand may fit like a size 12 in another.
• Account for layering. If your child will wear a polo under a blazer, make sure the blazer has enough room.
• Adjustable waistbands are your friend. Most quality uniform pants and skirts have internal elastic adjusters — look for this feature when shopping.

Finding Your School's Items on Class Threads

Once you have your measurements, head to your school's collection on Class Threads. Use the school selector on our homepage to find your school, then filter by item type and size.

If you're buying gently used items, check the listing description carefully — sellers often include the brand and actual measurements alongside the tagged size.

Need help finding the right size? Browse your school's uniform collection on Class Threads and reach out if you have questions.