Mixing bottle is made of Tritan, which is completely safe to infant grade regulations as well as being shatter resistant. No BPA. Use as you please! Be the center of attention with the vortex-mixing spectacle! The 15oz (450ml) capacity makes this the perfect assistant to your workouts to help you achieve the perfect physique. Simply pour in some warm water mixed with detergent, power up the mixer, and voila, all clean! IPX5 certification allows the outer part to be washed.