The new Profile Design RZ2 System Aero Water Bottle and Cage is a sleek and sporty water bottle perfect for cycling enthusiasts. With a volume of 0.5 litres and made from BPA-free plastic, this black water bottle is lightweight at 75 hundredths-pounds. The aero design helps reduce drag while riding, making it a practical and stylish choice for athletes. The accompanying cage provides easy access to your water bottle during your cycling adventures, ensuring you stay hydrated and focused on your performance.