Feature:  
Provide you clean & purified drinking water directly from streams, puddles, lakes, brook and more  
Adopt 0.01um ultra filteration membrane cartridge, can remove 99.99% harmful bacteria like colibacillus, legionella, salmonella, keep the water you drink outdoor safe and clean  
Physical fiteration, chemical-free  
Can be connected with water bag or bottles (Not Included)  
Warm Tips:  
Back Flush Design: regularly blow air through waterstraw after drinking to keep the filters clean and to prevent them from clogging  
Original Water: Lake, River, Brook, etc  
Material: Silicone+ABS  
Color: As shown  
Total Length: 30cm