Stay warm and comfortable on your dives with the Fourth Element Thermocline Men's Long Sleeve Top. This front-zip top is designed to provide excellent thermal protection without the bulk of a traditional wetsuit. Perfect as a standalone for warmer waters or as a base layer under your wetsuit for added warmth in cooler conditions, the Thermocline material is lightweight, breathable, and quick-drying. It's also neutrally buoyant, so you won't need to adjust your weighting. The smooth inner layer feels great against the skin, while the outer layer provides a water-repellent finish. Enjoy enhanced flexibility and freedom of movement, making your time in the water even more enjoyable.