Sistema Twist ‘n’ Sip Bottle features a unique lid that allows the bottle to be opened and closed without touching the sipper tip giving a more hygienic way to drink. These colorful bottles are leak proof making it ideal for active and busy lifestyles. It is perfect for sports, office, school or days out. It is dishwasher safe top rack only, microwave safe without lid and freezer safe. Made from translucent BPA free material, this bottle is easy grip and suitable for kids and adults.