Small in size, big in impact You’re killing it at the gym. Working up a sweat on the football field. Obliterating your personal best on the track. You get thirsty. Need to hydrate. You reach for your single-use plastic water bottle. Or, do you? Meet your new ideal sporting companion: the Dopper Sport Cap. Helping you achieve both your health and sustainability goals, by turning your Dopper bottle into the perfect sports water bottle. Keeping single-use water bottles out of your sport and out of our oceans. Whether you are mountain biking through bright green woodlands, or taking to the foaming waves with a surfboard; the grey sport cap is your wingman.