Hi Nick,
I just realized that you're using J2Store component, the above cart module is Virtuemart Cart module which is overridden in JA Agrivita specific.
If you want to have the same icon, you need to customize the J2 Store Cart module on your site.
The header-r
position is loaded via the mainnav
block on your site so I just re-assigned this J2 Store cart module to this position and it's showing on the right side now.
Kindly check.