Dopper Steel (1.1 L) • Fight plastic pollution with Dopper's largest stainless steel water bottle for big adventures. • Strong yet lightweight stainless steel body and total weight of only 250 grams. • The Dopper Steel is Cradle to Cradle Certifie® Bronze. Looking for a 1-litre water bottle? We’ll do you one better. Meet de Dopper Steel 1.1 litre. The perfect 1.1 litre stainless steel water bottle for your next adventure • Ditch single-use plastic water bottles and fight plastic pollution with every sip • At 250 grams, this 1.1 litre reusable bottle weighs less than your phone • Strong stainless steel body • Iconic three-part design: bottle and cup in one for easy filling, cleaning, storing and sharing.