Bike bottles and cages are essential for staying hydrated during rides. Bike bottles are typically made of lightweight, squeezable plastic and are designed to fit snugly in your hand for easy drinking while cycling. They often feature a secure, leak-proof cap and a wide mouth for easy filling and cleaning. Bottle cages are mounts attached to the bike frame, usually near the handlebars or seat tube, designed to hold the bottle securely while allowing quick access. They are made from durable materials like aluminum, carbon fiber, or plastic and are designed to keep the bottle in place even on rough terrain.