Size Guide - Acorn Kids

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We offer the age range below as guidance but head size in children compared with their age can vary quite a lot, so we always recommend if possible to measure the child's head circumference to aid you in selecting the best size. Measure over the forehead and just above the ears using a tape measure or a piece of string and ruler.

Summer Hats

StyleSizeCircumference of hat (cm)Circumference range of childs head (cm)Approx age guide
Bucket Hats, Floppy Hats, and Reversible HatsXS4538 - 450-9 Mths
S5045 - 509 -18 Mths
M5248 - 5218 Mths – 3 Yrs
L5450 - 543-5 Yrs
XL5652 - 565 Yrs – Big Kid
Trucker and Visor CapsS/M5248 - 521-3 Yrs
M/L5652 - 563 Yrs – Big Kid
Straw Hats*S/M5248 - 541-3 Yrs

*Straw Hats can be worn on an angle so will fit beyond the circumference diameter

Winter Hats

StyleSizeCircumference of hat (cm)Circumference range of child's head (cm)Approx Age Guide
BeaniesXXS3333 - 370-3 mths
XS3838 - 423-6 mths
S4242 - 476-18 mths
M4545 - 5018mths-3yrs
L4747 - 523-5 yrs
XL4949 - 555yrs-Big Kid
Wool Felt HatsOne Size5450-543yrs-Big Kid

Winter Mittens

SizeAge GuideWidth Across Palm of mitten (cm)Tip to end of cuff normal length cuff(cm)
XXS *0-3 mths5.59.5
XS *3-9 mths611
S9-18 mths6.513 **
M18mths -3yrs715 **
L3-5 yrs7.518 **
XL5yrs -Big Kid820 **
* No thumb on XXS and XS mittens** Will sit just under a quarter way up arm