Janis size guide

To ensure your Janis is a safe and comfortable fit please see our size guide below. Alternatively contact our customer services team who will be happy to discuss your measurements and advise on the most appropriate size.

Model nameApprox min ageMin inside legMax inside legApprox height
Janis Extra Small
Adult 66cm 71cm 150-160cm
Janis Small 
Adult 71cm 76cm 157-167cm
Janis Medium
Adult 76cm 81cm 165-175cm
Janis Large
Adult 81cm 87cm 173-187cm

It’s important to firstly measure your inside leg. If your leg fits in two size brackets, choose the size that also matches your height.

How to measure

Inside leg:
  • Stand with your back to a wall in socks. Ensure their feet are flat on the floor.
  • Place a book between your legs.
  • Slide the book up the wall until it contacts your crotch firmly.
  • Ask someone to mark the wall at that point.
  • Measure from the mark straight down to the floor.
  • Place the book flat on your head.
  • Mark where the bottom of the book touches the wall and measure straight down to the floor.