From the manufacturer
No leaks, no drips: ultra tight screws on lid, anti-leak tested and proven, lockable flip top, stays open if needed, easy to read measuring
Sports and gym shaker bottle: Boldfit shaker sports and gym shaker bottle is exclusively for work out regimens that include supplements; before and/or after a work out
Better body absorption: the spider shaker mixer works like a Blending blade, shake to create a fresh Blend and more consistent Blend, meaning faster and better body absorption
Extra compartment: extra compartment for powder, mixes, etc, Also included as a bonus it the supplement pill holder that can also be stored in the compartment
BPA Free, no toxins, no harmful chemicals, very easy to clean; ultimate pro work out supplement bottle and dish washer safe