Two SALOMON hydration bottles made of flexible plastic, each with a 500ml capacity. Includes a Hydro Pack 500. Flasks tend to be consumables, and whether they fit well with your pack can vary, so this is a great opportunity to try them out! *The condition is clean, but they have been used a few times. Please refrain from purchasing if you are overly concerned about the condition. I often forget my flasks at races and end up having to buy new ones... haha. I have a lot of them at home, so I'm selling them cheap! - Brand: SALOMON - Quantity: 2 bottles - Capacity: 500ml - Material: Flexible plastic - Cap type: Screw cap Thank you for looking.