The Lifefactory Two 16oz glass bottles with plastic lids and removable silicone sleeve is a high-quality hydration product perfect for fitness enthusiasts. Made from durable glass and rubber, these bottles have a sleek design and a convenient removable sleeve for easy cleaning. With a volume of 17 fl oz, they are ideal for staying hydrated during workouts or outdoor activities. The brand's reputation for quality and the features of the bottles make them a reliable choice for staying hydrated on the go.