HydraPak hydration reservoir bladder SEEKER 3L in Sutro Green — 3‑liter water bladder for backpacks

HydraPak SEEKER 3L in Sutro Green is a 3-litre hydration reservoir designed to integrate into backpacks and deliver hands-free drinking during outdoor activities. The flexible bladder stores water securely while a drinking hose and bite valve provide easy access without stopping. The reservoir’s compact shape and durable construction are intended for day hikes, cycling, trail running and travel where convenient, on-the-go hydration is needed. The design supports straightforward refilling and cleaning to maintain water quality and usability.

Advantages

The hydration bladder offers a large 3-litre capacity in a low-profile form factor that fits a wide range of packs. Its durable, flexible material resists punctures and maintains shape when filled. The integrated drinking hose with bite valve enables hands-free sipping and reduces the need to remove the pack. A user-friendly fill opening and smooth interior surfaces make refills and cleaning faster and more thorough. The Sutro Green color provides high visibility while remaining unobtrusive in outdoor settings.

Suitable for

• Day hikes and multi-hour treks where steady hydration is needed
• Cycling and mountain biking with fast, hands-free access to water
• Trail running and endurance training requiring lightweight hydration
• Travel and commuting where a compact water reservoir fits into daypacks

Key specifications

• Capacity: 3 litres of water
• Material: flexible, puncture-resistant reservoir material suitable for repeated use
• Outlet: drinking hose with bite valve for hands-free operation
• Fill system: wide opening for quick refilling and easier cleaning
• Shape: low-profile design to fit inside backpacks and hydration sleeves
• Color: Sutro Green

How to use

Fill the reservoir with potable water through the wide opening, taking care not to overfill beyond the 3-litre capacity. Close the fill opening securely, place the bladder inside your backpack hydration sleeve or main compartment, and route the drinking hose through the pack’s hose port. Use the bite valve to drink hands-free during activity; light bites and gentle suction open the valve for flow. After use, empty remaining water, rinse the reservoir with clean water, and allow to dry fully before storage to prevent odors and microbial growth.

Usage recommendations

For longest service life, avoid exposing the reservoir to prolonged sunlight and extreme temperatures. Clean the bladder regularly with mild soap and water or a recommended reservoir cleaning kit, and store it dry and unrolled. If carrying beverages other than water, rinse the bladder thoroughly after each use to prevent staining or residual flavors.