The Hydro Flask 24 oz Wide Mouth-Lightweight sets new standards for insulated flasks. It is 25 percent lighter than comparable models without compromising on comfort or quality. The stainless steel design offers robustness yet is comfortable to carry. With its 710 milliliter capacity, it ensures that you never have to go thirsty on the go. Equipped with TempShield isolation, it keeps drinks cold for up to 24 hours or warm for up to 12 hours. Thanks to the perforated band and aluminum swivel joints, it is even lighter. Naturally, it is BPA and phthalate-free.