Leak proof puff valve spout Track your consumption with the translucent body Strategically placed grip and ergonomic bottle design for easy handling Pliable material provides enhanced squeezability for a faster flow of water Keep hydrated and keep training with the Hyperfuel Water Bottle from Nike. The leak proof puff valve spout provides a quick flow of water for instantaneous hydration and prevents leaking when not in use. With the translucent body you can instantly see how much water you have left. There's a strategically placed grip and ergonomic bottle design allow for easy handling and the pliable material provides enhanced squeezability for a faster flow of water.