Sip and stroll: Backpack oasis keeps you hydrated when you're out and about, with a 2-liter reservoir and tube-and-bite-valve delivery system. Includes a padded mesh back, rubberized mesh comfort straps, adjustable sternum strap, adjustable bungee cord and lashing, and reflective safety accents. 14.75" x 19" x 4". Black. Heat-transfer Dell EMC logo.