Features D.N.S back with integrated thermoformed system, Load lifter Pockets, Double pocket in top lid, Security pocket with key-ring, Front pocket Removable straps for poles/snowboard Front access to main backpack, Compression straps, Front compression, Two ice axe/pole holders Description Product Description Ferrino Esprit 25L Black Backpack, Each 75213ACC. Linear backpack, ideal for excursions. The D.N.S. system creates a space for air to circulate freely between the back and the backpack, which means the back is perfectly ventilated at all times.