MICHAEL buying KORS RHEA BACKPACK

Product Name: MICHAEL buying KORS RHEA BACKPACK
This is a super cute, Michael Kors, Reah backpack And I really pretty red it measures approximately 7 inches wide by about 8 inches tall and the depth is about 2 1/2 3 inches. It comes with five Michael Kors charm Pins. They of course can be taken out but those sell for around $30 apiece. There's a dog, a heart, a #a pretty Sunburst and a red glittery teardrop round charm and the dog super cute and great condition. This was purchased for my niece, but she does not like it. She doesn't like red. I'm not understanding the backstrap though. I think buying this is meant to look like a backpack, but it only has one long strap that is adjustable see photo, so maybe it's a Crossbody.