Our most popular size, the 27oz Classic is ideal for busy, on-the-go folks. Klean's Sport Cap 3.0 is ideal for the gym, featuring a soft silicone spout, 25% higher flow rate and "chirp" free experience.

• Large 1.75" (44mm) opening fits ice, easy filling and pouring
• Electropolished interior doesn't retain or impart flavors
• Safe, durable, high quality materials
• Portable, reusable, and recyclable