Carry less water and filter on the fly. Building on the innovative PackFlask™ design, this enhanced system features an integrated filter for fast, reliable hydration on the trail. Simply find a water source, fill and drink directly through the high-flow, self-sealing nozzle. The filter screws securely onto the flask, doubling as a squeeze filter for filling bottles or pots at camp. The stretch-mesh pouch securely attaches to your pack harness for hands-free use. PackFlask+ - Item Includes Stretch mesh pouch to secure PackFlask for hands-free hydration. Dust cover to protect from dust, mud, dirt, and bacteria. Hollow fiber filter cap filters at approximately 1,500 liters of water at a rate of >1L per minute. The backflow adapter helps restore the flow rate after usage. Basic care and use instructions Product Weights and Dims: PackFlask+ Capacity: 750 ml / 25 fl oz Weight: 116 g / 4.1 oz Materials: TPU, PP, Silicone, POM, TPE, ABS, Hollow Fiber, Polyester, EVA, Nylon Dimensions: 228 mm x 107 mm / 9.0 in x 4.2 in *Effectively removes common waterborne bacteria, such as E. coli (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and NSF P231 and microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size.EPA COMPANY NO.:102123EPA ESTABLISHMENT NO.: 102123°CHN°1