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.

Specifications

• 500ml (16 oz) capacity
• 250mm / 10" tube/straw length and 5/16" diameter
• TPU body with silicone bite valve
• 42mm opening
• Dishwasher safe (top rack)/Freezer safe
• Weight: ~48g
• Dimensions (not including tube): 240mm L x 90mm W (9.5" L x 3.5" W)

Features

• 250mm length tube/straw so that the soft flask does not need to be removed from vest pockets when drinking
• Modular and able to integrate within a variety of packs, lumbars, and pockets
• Collapsible
• High Flow Bite Valve (Hydrapak Blaster Valve)
• RF welded seams to create superior bonds at a molecular level
• 42mm Screw Cap
• BPA Free
• PVC Free
• Dishwasher Safe
• Exceeds FDA & EU regulations
• Naturally Anti-fungal
• No-Leak Product Warranty