The CamelBak Podium Flow Belt Dirt Series 21 oz water bottle in black is a high-quality and durable hydration solution for cyclists and outdoor enthusiasts. Made of nylon material, this belt-attached water bottle is perfect for staying hydrated during long rides or outdoor adventures. The 21 oz volume ensures you have plenty of water to last you throughout your activity, making it a reliable and practical choice for those who prioritize convenience and functionality in their gear.