The Thermo X Vest With Neo Hood by O'Neill provides incredible insulation with low but and quick dry properties.
Maximum Base-Layer Insulation
4-Way Stretch Fabric
Strategic Seam Placement
Super Low Neck: No Interference with Wetsuit Neck
220g Nylon/Spandex with HyperDry for maximum insulation and minimal water absorption
Flatlock Stitched Breathable Seams