The Nathan Sports Hydration Bladder is a quality hydration bladder from a reputable and popular brand.
This hydration sleeve features:
Large opening - for easy filling, emptying, cleaning, and adding hydration mixes
High-flow bite valve - allows you to take proper mouthfuls of water without any effort
Quick-release hoses - for convenient cleaning, so you're ready for another day hitting the pavement tomorrow
BPA-free materials - fully safe and non-toxic materials.