The deuter speed lite 5 rucksack our ultra light sports packs for the quick footed athlete experience virtual weightlessness when mountain running ski tour racing cycling marathons nordic walking or even when sprinting to catch that bus and their new sleek silhouette makes it look even more athletic deuter speed lite 5 rucksack features delrinreg u frame made with ultra lightweight high strength polyamide with reinforcements on bottom of pack special tapered shape for