Crank out a marathon long session while still staying warm in the Quiksilver Marathon Sessions 3/2 Chest Zip Wetsuit. Engineered with WarmFlight Far-Infrared thermal lining that converts your body heat into cozy warmth. Backed by technology and sustainability, this suit is eco-friendly, built from recycled materials, and is Bluesign® certified. Stay warmer, longer, while keeping the earth you love in mind, while wearing this stellar suit.