FOR USE WITH MAURTEN DRINK MIX 160 OR DRINK MIX 320 - PHYSICAL FLASK ONLY, NOT A NUTRITION ITEMMaurten Drinkflask 550 ml is a soft sport flask designed to make Maurten hydrogel fueling easier during longer or more demanding sessions. The 550 ml volume is built to hold 500 ml of water plus one Maurten Drink Mix 160 or Drink Mix 320 sachet, with an additional 50 ml of space to help the powder dissolve properly.The soft construction compresses as you drink and is made to move with the body, making it easier to carry and fuel on the go. A bite valve helps create clean, easy flow, while the 42 mm neck opening makes filling and mixing simple before training or racing. 550 ml soft flask designed for Maurten Drink Mix Holds 500 ml of water plus one Drink Mix 160 or Drink Mix 320 sachet Extra 50 ml of volume helps with dissolving Drink Mix Bite valve for easy, clean flow 42 mm neck opening for filling and mixing High-strength 3D welded construction Soft flask compresses as you drink Developed to fit the chest pockets of most trail running vests BPA and PVC free Freezable Food product approved Wash before first use Item Specifications TypeSoft Flask Volume550 ml Compatible ProductsMaurten Drink Mix 160, Drink Mix 320 Recommended Water Fill500 ml Extra Mixing Volume50 ml Opening Type42 mm Neck Aperture Valve TypeBite Valve ConstructionHigh-Strength 3D Welds Material DetailsBPA and PVC Free FreezableYes Product Dimensions260 x 75 x 50 mm UseMixing and Carrying Maurten Drink Mix Nutrition ItemNo CleaningHand Wash With Warm Soapy Water or Top-Rack Dishwasher Safe Maurten Sport Hydration