The high-performance system is made from premium materials designed for long-lasting durability to meet the demands of water filtration and storage. The optimized filter cartridge provides a high flow rate and the ability to remove sand and silt without clogging. The filter size of 0.2 microns filters out 99.999999% of bacteria, 99.999% of parasites, and a significant amount of microplastics. The water storage bag is made from high-quality, BPA-free materials (without plasticizers) ensuring a long lifespan. The 8-liter water bag is highly versatile and leak-proof as a storage system. The removable straw filter can be used alone or with a standard water bottle. The enhanced microfilter performance, redesigned membrane, and specialized backwash accessories ensure better performance against sand and silt while maintaining flow over an extended period. The membrane microfilter lasts up to 2000 liters. Included are the LifeStraw Peak Series 8L gravity bag with hose and standard quick connect, carabiner, leak-proof cap for water storage, easy carry strap, backwash accessories, and user manual. Additionally, your purchase has an impact: one purchase equals one year of clean water for a child through LifeStraw's Doing Good program.