The Santi BZ420X Ladies undersuit is the latest evolution of the popular BZ400X, crafted for the most frigid and challenging diving conditions. This undersuit is designed to provide exceptional insulation, durability, and comfort, making it an ideal choice for divers in cold-water environments. The BZ420X features upgraded Thinsulate material for enhanced warmth without compromising its non-compressive nature underwater. With a modern aesthetic and reinforced design, it ensures both style and protection, allowing divers to focus on their underwater adventures. Enhanced insulation with improved Thinsulate material for superior warmth High-quality Thermo Pile 100 fleece for increased comfort and breathability Reinforced upper chest and shoulders for added durability in high-wear areas Sleek "brick" pattern design for a contemporary look Two side pockets and an inside pocket on the left chest for convenience Reflective tapes for increased visibility Rubber thumb loops to facilitate air su