DetailsZone3 Tri Suit Size Chart The Activate+ top is Zone3's advanced tri top with refined panel design and improved fit, as well as eye catching graphical print, designed to add some color to your race day with a matte finish for a modern, stylish look. Made from high quality Italian fabric for breathability, coverage and shape retention. The printed panels are complemented by a high powered Lycra Sport fabric on the front body of the singlet. The back panel is made from an extremely lightweight and high stretch fabric with a waffle structure to give maximum breathability and comfort-fit. The Tri Top is suitable for not only triathlon but also individual running, cycling and gym work.