This is a new, unused set of two 500ml INNER FACT soft flasks, BPA-free and hygienic. - Brand: INNER FACT - Capacity: 500ml - Material: TPU (Thermoplastic Polyurethane) I purchased these but never got around to using them, so they've been stored away. I'm selling them now as I don't anticipate using them in the future. Although they are new and unused, they have been stored, so those seeking a condition identical to brand new may want to reconsider. However, I've priced them a bit lower, making them a great recommendation for those planning to buy new or for fans of the popular INNER FACT brand.