Marathon Sessions 5/4/3 Cz Wetsuit. The warmer you feel, the longer you can surf. The Quiksilver Marathon Sessions is your reliable wetsuit for long sessions during the colder days of the year.Wetsuit technologyThe Marathon Sessions Chest Zip GBS wetsuit from Quiksilver features an extra-warm Eco Velvet lining, robust seams, and flexible, durable, ergonomically shaped neoprene.Lining and seamsIn addition, the ECO-WarmFlight® Infrared Lining with mineral-enriched fibers provides better body heat retention. The Diamond Deluxe material also maximizes stretch. GBS seams prevent water from penetrating, and the chest zip ensures greater freedom of movement and flexibility.This allows you to paddle longer and powerfully because you feel less resistance.Quiksilver EcoQuiksilver introduced limestone-based neoprene instead of petroleum. This saves resources and makes production more environmentally friendly. Carbon black is one of the most important components in neoprene. At Quiksilver, it is obtained from old, scrap tires. The carbon black that Quiksilver now uses in all its wetsuits drastically reduces energy consumption and saves 200 g of carbon emissions per suit. Quiksilver recycles waste generated during production. Quiksilver also uses a new, water-based adhesive and new dyes to protect our environment.