Getting clean, filtered water out in the wilderness seems more complicated than it should be in 2018. The Purisoo bottle aims to change that. It’s a lightweight, self-contained unit that pumps, filters, purifies, and carries your water, all in one. The integrated, replaceable filter removes impurities down to the microscopic and lasts for 1000 liters of filtering. The bottle carries 13.8 ounces of water.