Lightweight, easy to use portable water filter removes harmful bacteria, protozoa, cysts, sediment, And 100% of microplastics; Perfect for outdoor adventures, travel, or emergency preparedness High-Performance 0.1 micron absolute inline filter fits in the palm of your hand and weighs just 2 ounces 100% of squeeze units individually tested three times to performance standards by sawyer Removable cap; Filter water straight Into mouth or bottle from included pouch; Also fits standard water bottles with 28 mm threads; Use in gravity system Includes two reusable 32-Oz, BPA-Free collapsible pouches that roll up tightly for easy packing, drinking straw, one set of Sawyer inline hydration pack adapters for filter, and mesh storage bag