Iceberg Hydration Pack Graphite Features:; Mid weight hydration pack great for short or extended day trips; 2 Liter Cyclone; hydration bladder included; Deluxe padded back with Air Way cooling system allows air to travel to hard to reach places; Abundant reflective safety piping; Elastic adjustable sternum straps for added comfort and flexibility; Bottom compression straps to store extra items; Quick stash adjustable front pouch with 3 point entry access; Additional front accessory pocket with zipper; Capacity: 820 cu. in.