The hydrapak seeker 3l ultra light storage system get out and stay out the high capacity seeker 3l is a durable ultra light hydration storage system for all your long haul excursions it collapses down to the size of a fist attaches to your pack or hangs from a tree you can freeze it to use as an ice pack or fill it with hot water to keep you warm adventure seekers this onersquos for you hydrapak seeker 3l ultra light storage system features ultra light water storage solu