Inov8 Ultra Flask 0.5 with 10″ Tube

The versatile 500ml Ultraflask features a high flow phaser bite valve and a 10″ tube so it can be used with standard tops or straws depending on your preference. A large 42mm cap entry aids quick and easy refilling at race checkpoints. A durable, shaped RF welded construction and flexible TPU design ensures the bottle is soft and flexible, reducing any water movement and fitting to any body shape.