Flux™ Ultra-light Flexible Bottle - Malibu Blue

Get the stability of a traditional bottle without carrying an empty rigid container after the water is gone. The HydraPak Flux™ Malibu Blue stands upright when filled, then compresses and rolls down to pocket size for compact storage.

Available in 1L and 1.5L capacities, the Flux™ is designed for hiking, camping and travel where low weight and packability matter. Its twist-to-drink nozzle provides controlled, high-flow hydration, while the flexible bail handle makes the bottle comfortable to carry, attach or secure when rolled.

Key features

• Stable bottle shape: dual-layer construction provides enough structure for the Flux™ to stand upright when filled.
• Compressible and packable: rolls down when empty to save space in a pocket, pack or travel bag.
• Lightweight design: approximately 50% lighter than a comparable rigid bottle.
• High-flow nozzle: the twist-to-drink design delivers more flow with less splash than drinking directly from a conventional wide-mouth opening.
• Protective dust cover: helps keep the drinking nozzle away from dirt and contact with unclean hands.
• Flexible bail handle: provides a comfortable carry point, supports quick attachment and secures the bottle after it has been rolled.
• Pack-pocket friendly: shaped to fit common backpack side pockets while full.
• 42mm filter compatible: works with many threaded backcountry filters, including the HydraPak Filter Cap and Katadyn BeFree.
• Durable flexible body: abrasion-resistant TPU and RF-welded seams balance elasticity with dependable outdoor use.
• BPA- and PVC-free: freezer safe, with a maximum recommended temperature of 60°C / 140°F.

Specifications

Which size should you choose?

Flux™ 1L

A compact choice for day hikes, commuting, travel and shorter adventures. It provides useful capacity while fitting more easily into smaller pack pockets.

Flux™ 1.5L

Better suited to longer routes, warm conditions, campsites and trips with fewer refill opportunities. The larger size adds 500ml while remaining highly packable when empty.

Recommended use cases

• Day hiking and trekking
• Camping and backpacking
• Travel and compact luggage storage
• Water collection at camp
• Backcountry filtration with a compatible 42mm filter
• Everyday use when an empty rigid bottle would take up too much space

Using the Flux™ with a water filter

The 42mm thread accepts compatible filters such as the HydraPak Filter Cap and Katadyn BeFree. Attach the filter according to its manufacturer’s instructions, then drink directly or squeeze the flexible bottle to move treated water into another clean container.

Important: the standard Flux™ bottle does not include a filter. A compatible filter must be purchased separately.

Cleaning and care

1. Remove the nozzle and cap components after use.
2. Wash the bottle with mild soap and warm water.
3. Use a soft bottle brush through the 42mm opening when deeper cleaning is required.
4. Rinse the nozzle and dust cover separately.
5. Allow every component to dry completely before reassembly, rolling or storage.

Compare HydraPak bottles

Choose the Flux™ when you want a reusable bottle that feels stable while drinking and virtually disappears into your pack after use.