Sarah Kauss spent a year designing, developing and testing the S’well Bottle, and her diligence in creating a more sustainable steel bottle isn’t lost on us. But athletes and travelers aren’t the only ones to benefit from the non-leaching, non-toxic bottles: women and children in rural areas are to have improved water sanitation thanks to the company’s partnership with WaterAid. Insulated to keep beverages hot or cold, the “hydration vessel” ($35) is a colorful and stylish way to combat the $7 billion that people spend on bottled water annually.