NATIONAL PUPPY DAY - MARCH 23 This adorable aqua and fuchsia pet spa backpack with fabric shoulder straps, measures 6.7Ó (17cm) wide x 10Ó (25.4cm) tall x 3.9Ó (9.9cm) deep. When the backpack is opened, the trays inside expand the space outwards, holding all sorts of pet care goodies.