3 Billion people currently don’t have access to safe drinking water. The SolarSack is an innovative water purification device that has the potential to make clean water available to everyone on the planet. SolarSack's unique approach to water purification is based on utilizing the sun's readily available energy to produce drinking water. SolarSack costs only $3, which makes the product incredibly affordable. To use the SolarSack, simply fill the bag with water and place into the sun. After four hours, the water is safe to drink! The SolarSack is an innovative water purification device that has the potential to make clean water available to everyone on the planet. SolarSack's unique approach to water purification is based on utilizing the sun's readily available energy to produce drinking water.