NIrV Backpack Bible, Imitation Leather, Blue. Small enough to fit into almost any backpack or bag, the NIrV Backpack Bible is ideal for home, school, or church use. It uses the New International Reader's Version (NIrV), an easy-to-read Bible translation based on the bestselling New International Version (NIV). Serving as a stepping stone to the NIV, the NIrV accurately conveys biblical meaning in a way that kids understand and parents trust.