SEA LEVEL SWIM. Eco Essentials Twist Front Multifit Swimsuit. Take the plunge into the season with the Eco Essentials collection. Often the simplest statements have the most impact. The Eco Essentials is designed to enhance the body with ultimate support, comfort, shape, confidence, and timeless elegance. The Eco Essentials Twist Front Multifit Swimsuit features soft cup support, adjustable & convertible straps, and powermesh support at the front and the back to ensure maximum comfort.