tankbag for 1200GS

[Maya]

want to a tankbag for my 1200GS before our next trip. do find the BMW tankbag to be too big and bulky for my taste. looking for something smaller to fit the basics only - camera,wallet and map ;D
where can I go and shop for a smaller type of bag to fit a 1200GS?
regards

 

[Manic]

 

[Lighthouse Keeper]

 

[Manic]

 

[VMAN]