Which backpack should i get?

I'm going to be a eighth grader next year and i want to have a cute backpack which one should i get??? http://www.roxy.com/product/index.jsp?productId=3955364&cp=2818169.3176247(i like the black and blue one) OR http://jansport.com/js_product_detail.php?cid=10&pid=T501 (i like it in navy dreamweaver) I'm open to other ideas too