Size Guide | Flexars

Adult Leggings Size Guide

Size guide for:

  • The Original Flexars
  • Sticky Seat Flexars
  • Competition Flexars

Flexars should be tight to pull up, this means that once they are up they will stay in place and won't go baggy. They are designed to fit like a second skin. From experience, please see our advice below.  Please size down if you are in-between sizes. This size guide is just a guide, and we cannot guarantee which size will fit you the best.

If your inner leg length is shorter than 25 inches, please order the shorter length. Flexars will stretch to fit up to 4 inches if needed.

Flexars Size UK US EU Regular Length (Inside Leg Inches) Shorter Length (Inside Leg Inches)


2-4 00-1 30-32 27 24
XS 4-8 1-4 32-36 28 25
S 10-12 6-8 38-40 28 25
M 14-16 10-12 42-44 29 26
L 16-18 12-14 44-46 29 26
XL 18-20 14-16 46-48 30 26
XXL 22-24 18-20 50-52 30 26


Children's Leggings Size Guide

Little Flexars are tight in the leg and therefore can be rolled/folded/scrunched under/over to fit better on the leg, this will not cause them to be uncomfortable under boots as the fabric is very soft. The ages are just a guide, please order to the waist and inside leg length. 

Flexars Size Inside Leg (cm) Waist (relaxed in cm) Waist (stretched in cm)
 4-5 45 23 30
6-7 50 25 34
8-9 54 26 40
10-11 60 27 42

Maternity Leggings Size Guide

If using Flexars for maternity leggings or maternity riding leggings, we advise you to find your 'normal' size and then size up. 


  • Size XS pre-pregnancy = Size S during pregnancy
  • Size S pre-pregnancy = Size M during pregnancy
  • Size M pre-pregnancy = Size L during pregnancy
  • Size L pre-pregnancy = Size XL during pregnancy
  • Size XL pre-pregnancy = Size XXL during pregnancy

These are guidelines only as every pregnancy is different. Please email us if you need extra help choosing a size.


Size Guide Flexars