Retap is a neat half-liter glass bottle with a silicone lid, available in several colors. It is an environmentally friendly alternative to the traditional PET bottles - and more economic as well! Buying bottled water is not environmentally friendly - not in the manufacturing, transportation and recycling of those bottles. Buy a Retap instead and fill it with tap water - carbonated or not! Retap is dishwasher safe and is manufactured in a highly durable glass. Use your Retap instead of a glass for drinking water while working at your desk at work or at home. The silicone lid is not 100% waterproof and the Retap bottle is not meant to carry in a bag.