Sigg Traveller 1.0 - The legendary bottle with high quality coatings. Sigg aluminium bottles are rugged and durable. Thanks to the internal coating, no aluminum enters your drink! BPA free. Volume 1.0 liters. For many hikers, a Sigg bottle is the only one you dare take inside of your sleeping bag for the night. This special model has cool Moomin house graphics. - Leak-free top (also available as spare parts should you lose one) - Safe liner material prevents aluminium from leaching into your drink - Can be used with carbonated drinks, just make sure to open carefully when opening the top - BPA-free - Can handle sour drinks