20 oz is just the volumn for work-out or healthy aerobic exercise and the shape is perfectly tailored for you to hold. It is made of aluminium and featuring a narrow groove design. 

• 0.381LB is so light to carry around
• Flip top lid with silica-gel sealing ring to prevent scalding
• An odorless leak-proof screw top
• ORCA coating allows the printed image to fantastically represent your preferences

This aluminium water bottle with good price and premium quality would be the best choice for you and your life. Design your special flip top water bottle now!