The carbon-negative stainless steel bottles from Guyot Designs prove that better eco products are always on the horizon. These bad boys each carry 100 pounds of verified carbon emissions reductions--a figure that's backed up by their online C-Minus SN Look-up form.

With sizes and designs that vary according to use, like the Commuter, the Standard and the Backpacker, these stainless steel bottles from Guyot Designs are a great way to make your daily hydration routine even more eco-friendly.