Gatorade Bicycle Bottle, 21 oz. 2 pack. Fits into bike cage Perfect for sports teams, athletic events. Perfect fit for water bottle cages on bikes. These 21 oz bottles are ideal for use with our single serve sticks The built-in pull / push close valve prevents spillage when bottle is not being squeezed Convenient squeezable plastic bottles - Certified G series GATORADE Just squeeze and drink - easy to clean, top rack dish washer safe.