Hatsune Miku Virtual Singers Ombre Mini Backpack. Hatsune Miku Virtual Singers Ombre Mini Backpack Packing for your favorite virtual singer's show? Make sure you bring this mini backpack with you to hold all your concert essentials! This ombré mini backpack features an allover print of your favorite virtual singers in chibi form. Comes with a front zipper pocket, adjustable straps and silver tone hardware. 9 1/2" x 5" x 10" Polyurethane Front zipper pocket Adjustable straps