
Engineered with hollow fibre membrane technology, FiltSipy removes impurities directly at the source. Lightweight, durable, and universally compatible with standard bottles, it ensures clean, great-tasting hydration on every outdoor adventure.










The advanced hollow fibre membrane blocks particles, sediment, heavy metals, microplastics, and chlorine to deliver crisp, purified drinking water wherever your trail takes you.
Engineered for long-lasting expeditions and emergency preparedness, one single compact FiltSipy straw reliably purifies thousands of litres without requiring replacement cartridges.


Attach directly to standard 28mm plastic bottles, gravity squeeze bags, or drink straight from natural freshwater sources using the ergonomic personal filter straw design.



FiltSipy provides exceptional filtration performance in an ultra-compact body. For wilderness trekking and emergency readiness, its 0.01μm hollow fibre membrane offers dependable defence against waterborne contaminants.
Dr. Arthur Davies, Research Specialist


Precision hollow fibre filters down to 0.01 microns, removing dirt, micro-contaminants, and heavy metals from natural streams.

Provides up to 5,000 litres of clean hydration, delivering years of continuous, dependable outdoor purification performance.

Weighing mere grams and measuring 13.5cm, it slips effortlessly into hiking rucksacks, bug-out bags, and glove boxes.


Connects seamlessly to standard soda bottles, collapsible hydration pouches, or functions directly as a personal drinking straw.

Crafted with 100% food-grade, chemical-free materials to guarantee clean, fresh water without any foul plastic aftertaste.

Sip naturally without laborious pumping or slow chemical tablet wait times, keeping you hydrated and energised on the trail.









Try FiltSipy risk-free with our 30-day money-back guarantee. If you're not completely satisfied with its filtration performance, contact our UK support team for a full, prompt refund.
Everything you need to know






Took FiltSipy hiking in the Lake District. Drank straight from mountain streams without any hesitation. The water was crisp and pure. Essential piece of kit for walkers!

Remarkably compact and lightweight. It easily screwed onto my standard water bottle while wild camping in Scotland. Saved carrying litres of heavy water on trails.

Purchased the buy 1 get 1 free deal for my bushcraft kit and glove compartment. Flow rate is surprisingly fast and effortless to drink from. Highly recommended survival gear.
