This Shouder bag from Just Have Fun is a great shape and has a great look. It is made of polyester ripstope type fabric and has enough space for a smaller tablet, wallet/purse, keys etc.
 
Fits ipad Mini sized tablets
Polyester, Main zip closure
Removable shoulder strap, Front zip pocket
Front slot organiser pockets
Reflective JHF print
11" x 8" x 2"