What’s so incredible about StretchFlight neoprene? It’s what gives the 4/3 Marathon Sessions Chest Zip Wetsuit its superior warmth and comfort, plus all the flexibility you could ever want. Bluesign® certified, this eco-friendly wetsuit also has a lightweight feel. So there’s no worry about feeling dragged down. And as for cold temps and water blockage, you’d better believe our R&D; team dealt with it and has it dialed in with an infrared thermal lining that will transform your body heat into warm energy.
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