HydraPak Ultraflask Speed 500ml

• SpeedFill™ cap for quick, clean refills at taps or aid stations.
• Soft flask compresses as you drink — no sloshing, no wasted space.
• Fits perfectly in running vest front pockets.
• High‑flow bite valve for smooth, effortless drinking.
• Lightweight, durable, and packable for long runs and races.

• Capacity: 500 ml
• Cap: 42mm SpeedFill™ cap for rapid filling
• Valve: High‑flow bite valve with self‑sealing design
• Material: Ultra‑durable TPUBPA‑free / PVC‑free
• Design:
  - Soft, collapsible body
  - Shrinks as you drink
  - Flexible shape fits vest pockets comfortably
• Weight: Approx. 57 g
• Compatibility: Works with HydraPak 42mm accessories (e.g., Filter Cap, Speedfill Cap)
• Maintenance:
  - Reversible for easy cleaning
  - Top‑rack dishwasher safe

• Trail and ultra runners using vest‑based hydration
• Race days where refill speed matters
• Long missions where comfort and efficiency are key
• Runners who want a soft flask that eliminates sloshing
• Pairing with HydraPak’s 42mm Filter Cap for on‑the‑go filtration

The UltraFlask™ Speed 500ml is one of the most versatile and runner‑friendly flasks available. The SpeedFill™ cap makes refills incredibly fast, the soft body eliminates sloshing, and the flexible shape fits comfortably in any vest. It’s lightweight, durable, and built for athletes who want hydration that keeps up with them on long, demanding days.