It’s the simple, economical, lightweight and compact solution for remote camping and backpacking. The optimized filter cartridge provides high flow rates and the ability to remove dirt and sediment without clogging. The water storage bag is made from premium materials for added durability, so it can withstand the same harsh treatment you put your other gear through. You’ll never have to buy another one. Designed to be ultra-versatile and completely leak-proof, it can be used on the go, or as a stand-alone straw filter or with a standard water bottle. For every LifeStraw product purchased, a school-aged child in need receives clean water for an entire school year.

• Protects against 99.999999 % of bacteria (including E. coli and salmonella), 99.999 % of parasites (including Giardia and cryptosporidia) and 99.999 % of microplastics, sediment, dirt and turbidity
• Improved Microfilter Performance: Our redesigned membrane and custom backwash accessory provide improved performance against dirt and sediment, helping maintain good flow over the long term
• Extreme Durability: Premium materials for added strength and ultra-waterproof, so you'll never have to buy another one
• Highly versatile, the Gravity System is designed for any occasion. Use it as a gravity system, a large squeeze bottle, a straw or use the filter with a water bottle.
• Your purchase makes a difference: one product, one child, drinking water for a year 
• LifeStraw is proud to be a certified B Corp and carbon neutral brand, committed to the highest standards of verified societal and environmental requirements, transparency and accountability. 
• The membrane microfilter protects against 99.999999 % bacteria, 99.999 % parasites, 99.999 % microplastics, dirt, sediment and turbidity 
• Meets US EPA and NSF P231 drinking water standards for the removal of bacteria and parasites 
• The membrane microfilter can filter up to 2,000 l, pore size: 0.2 micron 
• Weight: 228 g
• Dimensions: 22 x 52.9 cm 
• Hose length: 1.20 m
• BPA free, FDA approved, materials top quality 
• Package Contents: LifeStraw Peak Series 3L Gravity Bag with Hose and Standard Quick Connector, Carabiner, Waterproof Cap for Water Storage, Strap for Easy Carrying, Backwash Accessory, User Manual