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"   Here at GHRI, we don&amp;#039;t pick the top backpacks for Back-To-School based on looks alone. We make sure these babies can withstand the trauma your kids are bound to put them through during the school year. Here&amp;#039;s our top five tests for making sure those packs will last the season and beyond: 1)Dragging: Fabric from every part of the bag (yes including the bottom) is tested on the Wysenbeek machine. This apparatus rubs the fabric back and forth 15,000 times against a steel drum, giving us an idea how well the fabric will hold up to repeatedly being dragged on the sidewalk!  2)Packing: We make sure a hefty assortment of school supplies can fit into the bag. 3)Strength: After we pull it apart on the Instron machine, we know how easily it will rip if it&amp;#039;s caught in a locker door. 4)Dropping: Filled with ten pounds of school supplies, each backpack is dropped from a height of three feet. Think of it being tossed out the bus window. 5)The ultimate kid-appeal: Children from 8 to 18 review the packs, rating them for style and how easy it is to stash their gear. Let&amp;#039;s face it: If they don&amp;#039;t like the bag, they&amp;#039;re not going to use it! For a complete look at our backpack results, see Best Kids&amp;#039; Backpacks atgoodhousekeepng.com "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/institute/a22862/backpacks-testing-testing/>