WEBAmazon.com: Simple Backpack. 1-16 of over 7,000 results for "simple backpack" Results. Price and other details may vary based on product size and color. Overall Pick. JanSport SuperBreak One School Backpack, Black. 25,709. 20K+ bought in past month. $3800. FREE delivery Mon, Sep 16. Or fastest delivery Tomorrow, Sep 12. More Buying Choices.