Ditch the extra gear and simplify your hydration with the LifeStraw Peak Series Collapsible Squeeze Water Bottle Filter System. This all-in-one water storage and filtration solution is built for durability, convenience, and versatility. Weighing less than 4 oz, it&&';;s ultralight and packable-perfect for backpacking, hiking, and emergency preparedness. Made from 2x thicker premium materials, it resists rips, tears, and punctures while ensuring leak-proof performance. The advanced microfilter removes 99.999999% of bacteria, 99.999% of parasites, and 99.999% of microplastics, silt, and sand. Use it as a squeeze bottle, straw filter, storage solution, or connect it to other Peak Series systems for maximum flexibility. Features: Advanced Filtration - Removes 99.999999% of bacteria (E. coli, Salmonella), 99.999% of parasites (Giardia, Cryptosporidium), and microplastics. Ultra-Compact & Lightweight - Weighs less than 4 oz, collapsible for easy packing. Extreme Durability - 2x thicker premium materials resist punctures, rips, and tears. Versatile Design - Use as a bottle, straw filter, squeeze system, or to fill other containers. Enhanced Flow Rate - Re-engineered microfilter and backwash accessory maintain performance against sand and silt. Leak-Proof & Smart Seal - Over-cap and mouthpiece prevent spills and leaks. Social Impact - One purchase provides one child with a year of safe water. Eco-Friendly Commitment - B Corp and Climate Neutral Certified brand.