These lightweight, seamless aluminum bottles are crafted with extreme precision to last a lifetime. Manufactured with an FDA approved non-corrosive lining resistant to acidic and isotonic drinks and won't flake even if the metal is dented, plus they are guaranteed against leaking, even under pressure from carbonation. This is one tough, scientifically engineered dynamo of a water bottle, and the painted designs are both solvent-free and pleasing to the eye. Cycle, climb, run, board, ski, or just picnic - you'll see why the Sigg bottle earned a place in the permanent collection of New York's Museum of Modern Art. Made in Switzerland by Sigg.