The Hydrapak UltraFlask + 500ml Filter Kit Clear is a complete hydration solution for endurance athletes and outdoor enthusiasts who want safe drinking water on every outing. With a 500ml capacity and weighing just 73 grams, the UltraFlask + combines the functionality of a lightweight soft flask with the protection of an advanced water filter, allowing you to fill your bottle from rivers, springs or taps without concern.
The included filter removes bacteria, protozoa and micro-particles, providing up to 1000 litres of filtered water over its lifespan. The 42mm opening makes it easy to fill with ice and is fully compatible with the filtration system. The Speedfill cap opens and closes with one click, providing quick filling and a complete seal, while the high-flow nozzle allows smooth, immediate drinking without leaks. The flask is ergonomically designed to fit easily into vest pockets, running belts or small backpacks.
It is made from durable, flexible TPU, PP, HDPE and silicone materials, all certified BPA- and PVC-free, offering maximum safety and hygiene. The flask is dishwasher-safe, while the filter can be cleaned by rinsing and has a long lifespan. Measuring 230mm in height and 76mm in width, it is ideal for any outdoor activity, from trail running to multi-day hikes.
The Hydrapak UltraFlask + 500ml Filter Kit Clear is available on the Greek market through Performance Store, both online and in its physical stores in Thessaloniki. It is the perfect choice for those seeking freedom of movement, reliable hydration and the safety of filtered water on every adventure.








