Container preform

A preform for producing a plastic bottle comprising:

• a tubular body defining a hollow interior, the body defining the following components in sequence:
• a finish section defining an opening and a threaded portion;
• a neck ring;
• a transition section having a first end positioned adjacent to the neck ring and a second end opposite the first end;
• and
• a cylindrical body section extending from the second end of the transition section to a base, the base sealing the body at an end opposite the opening;
• a longitudinal axis extending from the opening through the base,
• wherein the transition section defines a tapered sidewall relative to the longitudinal axis, the tapered sidewall decreases a cross-sectional diameter of the hollow interior,
• wherein the tapered sidewall of the transition section contains more than 20% of a total weight of the preform, and
• wherein a sidewall of the base has a thickness less than a sidewall of the cylindrical body section.