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Size Chart and Measuring Guide

Size Chart and Measuring Guide for Children's Wool Bottoms

If using as a diaper cover take all measurements with baby wearing your biggest, bulkiest diaper you will want to use with the wool to ensure best fit. Some parents choose to have different wool for day use (thinner diaper) and overnight use (thickest overnight diapers.)

If you prefer a roomier fit and are near the end of one size, please size up.

The approximate ages are also hugely variable, since babies (and diapers) come in many sizes. Are you using a thinner day-time diaper or a highly absorbent, heavy wetter, overnight diaper? Flats, prefolds, fitted diapers ... all these factors affect the sizing.

If you have any questions, join our Chat group and BST to talk to real parents using HumBird and see the fit on real babies!

Diaper Covers

A traditional wool soaker. Order these Diaper Covers, made from merino wool and spandex interlock to provide superior protection. You can customize it to fit your child. Stretchy and soft and so many colours plus naturally breathable that keeps your baby dry and comfortable. The OF and F1 versions have the same smaller leg bands but the OF version has a wider crotch width, ideal for overnight protection. The F2 model has the same narrower crotch as the F1 version with larger leg bands.

Cloth Diaper Friendly

Cloth diaper friendly styles are not just for cloth diaper wearing children! These styles come with an extra large rise to fit over cloth diapers but are also worn over paper diapers or underwear. The slim fit styles of straights, relaxed fit straights, leggings, and straight fit leggings are the hip 1 style. Pants, longies, and wide leg longies have a larger hip capacity and are hip 2 on the sizing charts.

Child/Youth slim fit styles

Slim fit styles include skinnies, schmals, and relaxed fit schmals. Please pay attention to your childs measurements and do not order a style based on how you think your child is built. Many children can wear all styles by switching the size. For example, a 3/4 extended fit, 5 standard fit, and a 6 slim fit.

Child/Youth standard fit styles

Slim fit styles include skinnies, schmals, and relaxed fit schmals. Please pay attention to your childs measurements and do not order a style based on how you think your child is built. Many children can wear all styles by switching the size. For example, a 3/4 extended fit, 5 standard fit, and a 6 slim fit.

In CM

Child/Youth extended fit styles

Slim fit styles include skinnies, schmals, and relaxed fit schmals. Please pay attention to your childs measurements and do not order a style based on how you think your child is built. Many children can wear all styles by switching the size. For example, a 3/4 extended fit, 5 standard fit, and a 6 slim fit.

In CM

Waistband Cut sizes

I have provided the waistband cut sizes for you convenience to compare. The cut size is the actual measurement we cut at and not the measurement of your childs waist.

Regular No Fluff Vs Extended Fit Comparison

This is my 10 year old modeling trousers from the regular and extended fit lines.

  • Both are size 9/10
  • Kaleidoscope is Regular No Fluff slim leg longies
  • Pine Tree is Extended Fit No Fluff PANTS
  • Kaleidoscope is HumRugged
  • Pine Tree is HumClassic
  • Both had added inseam but no other adjustments

Current Measurements:

  • Waist: 24”
  • Hip: 28.5”
  • Rise: 18”

The slim leg longies fit as you would expect that style to fit. The ExFit PANTS are looser on her body than the style is meant to be due to the extended fit sizing. Technically, this particular 10 year old fits true to size in the Regular No Fluff line, but the ExFit line still works and leaves more room to grow. We love both options!