Geigerrig Rig 1200 hydration pack

Pressurized Hydration: The main feature is a 100-ounce (3-liter) "Hydration Engine" bladder that is pressurized using a separate air chamber and a small pump bulb, eliminating the need to suck on the bite valve.
Easy Cleaning: The hydration reservoir is fully reversible and dishwasher safe, making it easy to clean and dry completely, even after using sugary drink mixes.
Durable Construction: The pack is typically made from heavy-duty materials like ballistic or ripstop nylon for durability.
Storage Capacity: It has approximately 1,200 cubic inches (19.7 liters) of storage space, including two main compartments, internal organizers, mesh side pockets, and an external bungee storage system.
Filtration Ready: The system is designed with "plug-and-play" connectors, allowing for an in-line water filter to be added easily to filter water from natural sources on the go.