Item Code: 2UD30020553The Ultra Vest 10L is a super light trail running pack, delivering essential storage, without excess weight. When every gram counts, this close fit vest pack ensures outstanding fit and competitive storage, hugging the body for reduced bounce and maximum stability. A removable 5L dry pack provides versatility on long runs, two Hydrapak® flasks offer on-the-go hydration, and modular external attachment points allow easy carrying of poles. Made largely from elastane and recycled stretch-nylon mesh, the vest is designed to wick moisture and promote airflow, essential for extended days on the trail. Best for Ultrarunning, Trail running, Trail Racing  Unique closure system that allows the best fit for your body  Competitive amount of storage space  Detachable dry pack on the back  Two Hydrapak® flasks  Modular attachment points for your poles Ultra Vest 10L - Black