To prepare a smooth and lump-free shake, start with liquid and then add your powder using the Optimum Nutrition Opti-Shaker. The Opti-Lock leak-proof lid provides an audible click for secure sealing, preventing spills during active use.
Opti-Lock is the latest innovation from Optimum Nutrition, created to address common consumer pain points such as leakage and spills, whole elevating the overall user experience.
Ergonomic Sports Lid - Flip cap + integrated attachment loop
Ultra Performance Seals - Guaranteed leak proof
Integrated Agitator - Removable snap-fit agitator, domed form for optimal mixing
Printed Branded & Measurement Scale - Measurements in both ml & oz
Dark Tint Carbon Neutral Material - Ecozen bio-based copolymer, BPA and DEHP FREE, top rack dishwasher safe, superior safety and durability
Unique Leak Proof Feature - An audible and tactile lock and click to further endorse to the user that lid is secure and ready to use
Advisory Information: DO NOT use hot liquids. Hot or warm liquids may create pressure build-up causing the cap to open and spray contents. Fasten securely before shaking and always open with care.
Directions: Wash thoroughly before use. For best results, add liquid before adding your powder.
