Pepsi decided to redesign their 20-ounce bottle for the first time in 16 years. The new shape has a contoured bottom half that's probably made for easier grasping. The label is also smaller, exposing more of the drink. The new design will be sold in stores in April. Over time, Pepsi has made small modifications to the bottle's design, such as making surfaces easier to grip and shortening the bottle's neck.