The versatile deuter helium sl 24l daysack is a spacious and comfortable pack that provides ample storage for fast and light hikes with extra weight saving features the uniquely designed aircomfort flexlite system guarantees a great fit and enhanced breathability combining anatomically shaped shoulder straps and sturdy hip fins for extra comfort side and front pockets are ideal for stashing energy bars and other essentials with a separate area for keeping damp or wet belongings c