HydraPak insulated soft flask Polar Sport Pulse 600 ml, white

The HydraPak insulated soft flask Polar Sport Pulse 600 ml in white is a lightweight collapsible hydration flask designed for active use during running, hiking and endurance sports. Its insulated construction helps maintain fluid temperature while the soft, compressible body reduces sloshing and occupies minimal space as contents are consumed. The flask offers one-handed access to fluids and packs flat when empty, making it suitable for quick access on the move and compact storage in running vests or backpacks.

Advantages

Insulated walls help reduce temperature change of stored liquids, extending comfort during long activities. The collapsible soft-body design minimizes bounce and slosh compared with rigid bottles, and the low weight supports fast-paced sports where every gram matters. The simple valve mechanism enables easy one-handed operation and controlled flow, while the neutral white exterior integrates unobtrusively with a variety of gear and clothing.

Suitable for

• Trail running and road running where low weight and convenient access are priorities
• Day hikes and fastpacking trips requiring compact, packable hydration
• Endurance sports and training sessions where reduced sloshing improves stability
• Use with running vests, waist packs or inside backpack side pockets

Key specifications

• Capacity: 600 ml
• Material: insulated soft-wall construction with collapsible body
• Weight: lightweight design suitable for fast activities
• Closure: one-handed valve for easy access and controlled flow
• Shape: flexible, pack-flat when empty
• Colour: white exterior

How to use

Fill the flask with the desired drink up to its indicated capacity, secure the valve and use one hand to open and drink during activity. The soft-wall design allows the flask to be compressed as liquid is consumed to reduce movement and save space. After use, rinse with warm water and allow to air dry with the valve open; when fully dry, store flat or rolled to save storage space.

Usage recommendations

For best performance, avoid storing carbonated beverages and hot liquids beyond manufacturer temperature guidance. Rinse shortly after use to prevent residue buildup and periodically sanitize the valve and interior. When carrying in pack pockets, secure the cap to prevent accidental opening during vigorous activity.