Features:Lightweight and compact hollow-fiber membrane system can effectively provide clean and safe water.Chemical free,provide at least 1,000 liters of clean and safe drinking water from any source like creeks and streams.Easily attaches to your drinking pouch,standard disposable water bottles with 28mm thread,hydration packs,or use with silicone straw to drink directly from your water source.Convenient cap protects from dust and stains.Carabiner clip for easy carrying and hanging.Perfect for outdoor,emergency,camping,hiking,backpacking etc.Specification:Color: Green/Blue (optional)Material: BPA Free ABSWater Filter size: 128*30mm/5.0*1.2inFilter Capacity: 1000LFlow rate: 550ml/minFilter accuracy: 0.01 micron (minimum)Silicone straw length: 200mm/7.9inWeight: Approx. 64.9g/2.3ozPackage List:1* Water Filter1* Carabiner Clip1* Straw