Durable spill-proof bottle with inbuilt filtration to turn tap water into fresh, great tasting water. The sustainable plant-based filter lasts around 3 months (180L) and removes chlorine, taste and odour. The patented flip top Big Bite™ valve and straw allows easy drinking without tipping or taking your eyes off the road. The wide-mouth opening is easy to fill with ice and liquid. BPA free. Complete with a lifetime guarantee.