Nothing&';s cleaner, greener, or more versatile than a Platypus SoftBottle flexible bottle. Whether you&';re out running, catching a flight, or hitting the yoga studio after work, the SoftBottle flexible bottle is your source for easy hydration. Platy&';s most flexible water bottle. Lightweight and packable - 80% less weight and bulk than a hard bottle. Taste-free as well as BPA-, BPS-, and phthalate-free. Food-grade liner with rugged exterior is pliable and durable.