We replaced our Impact backpack with a new design in 2009 and it was a hit. In addition to a standard zippered closure, the new pack has a secondary removable front that folds over the bag and clips in/down for added security. This versatile full size backpack is equipped with plenty of pockets and storage. With padded backpack straps and padded back for extra comfort, the backpack strap has a handy zippered cell phone holder and there are chest and waist straps to secure the bag if needed. Our new backpack also comes with a removable "backpack cooler" inside to cool those cold drinks you need at the track.