Advanced Thermal Protection for Water AdventuresThis Top is crafted from 100% Chillproof material, providing exceptional thermal insulation and windproof protection. Its soft neoprene neck seal prevents water, spray, and wind from entering, ensuring you stay warm and comfortable in all conditions. This men's thermal long sleeve top is designed for ultimate performance and reliability during water sports.Versatile Design for Every WatersportPerfect for scuba diving or snorkeling, this long sleeve top works as a standalone garment in warmer waters or as an insulating layer under a wetsuit in colder conditions. Whether you're paddling, diving, or kayaking, this neoprene alternative diving top enhances warmth while maintaining mobility. It's also ideal as a next-to-skin thermal layer under dry-tops for white-water kayaking.Advanced Chillproof Technology for Superior PerformanceThe Chillproof material combines the thermal properties of a 2.5 to 3mm neoprene wetsuit with enhanced flexibility and comfort. Its three-layer construction includes a durable Nylon/Spandex outer layer for abrasion resistance, 10K+ breathable and windproof layer to stop windchill, and a hollow-fiber 'next to skin' fleece layer for moisture-wicking and warmth. Designed for durability and long-term use, the top also features a Durable Water Repellent (DWR) finish that provides UPF50+ sun protection and shell that 'sheds' water. Eco-friendly packaging and sustai