As above. I can see there are genuine Ugg-branded insoles for £18 (on Schuh, Very and the like) http://www.ugg.com/uk/sheepskin-insole/9501.html
is it worth going for these or is there a cheaper brand you can recommend?
Think the foam backing of the sole goes a long way towards the longevity of the insoles, too. I can see a dizzying array of cheap replacements on Amazon but real-life experiences would be better.
Thanks for any replies.