Features a Patented Vortex-blender Wall Design That Mixes Powders & Supplements Like a Pro - No Whisk or Screen Needed. 100% Leakproof: Built with a Secure, Leak-proof Design & Sturdy Carry Loop That Keeps Liquids Locked in - So You Can Stay Locked into Your Workout Without Spills Covered Spout + Quick Access Cap: Easy to Open, Easy to Close - Making It a Gym Essential for Every Workout. No Shaker Ball or Whisk Needed; Just Shake & Blend for a Perfectly Mixed Protein Shake, Whether Its Pre-workout, Post-workout, or Intra-workout Durable Construction: Vessel is Made with 75% Recycled, Bpa-free, Shatterproof Plastic That Stands Up to Daily Use - & the Vessel & Cap Are Dishwasher Safe for Quick, Easy Cleaning