The SANTI BZ 420X Heated Undersuit is the upgraded version of SANTI's best-selling thermal undersuit, delivering even greater warmth and efficiency for drysuit divers. Designed for extreme conditions, it features improved insulation, a more efficient heating system, and an enhanced fit, ensuring unparalleled comfort during long or deep dives. This undersuit is an essential component of the SANTI heating system, requiring a Thermovalve or Connector and an external battery for safe, effective heating underwater.
SANTI BZ 420X Heated Undersuit Specifications
Heating Performance:
Works exclusively with SANTI Thermovalve or SANTI Connector
14Ah BluePower battery: Up to 1 hour 30 minutes of heating
28Ah BluePower battery: Up to 3 hours of heating
Maximum heating power: 110W
Maximum heating temperature: 45°C
Material & Construction:
Inner layer: 290 g/m² for enhanced thermal insulation
Outer layer: 420 g/m² for durability and heat retention
New smooth inner material for effortless donning and doffing
Quilted "brick" pattern for improved flexibility and body fit
Elastic waistband for comfort and freedom of movement
Functional Features:
Heating elements strategically placed on the torso, thighs, and arms
Waterproof, flexible connector compatible with other SANTI products
Extra pocket for power cables for easy management
P-valve openings on both sides as standard
Cuffs with straps to allow air release and prevent sleeve slipping
Water-resistant cuffs for added protection
Two-way front zipper for convenience
SANTI BZ 420X Heated Undersuit Details
The SANTI BZ 420X Heated Undersuit is designed to provide maximum warmth even in the harshest environments. The upgraded cable layout ensures more even heat distribution, while its improved fabric structure enhances insulation, making it an ideal choice for long dives, deep explorations, or ice diving. Even when the heating is turned off, the undersuit retains its insulating properties, keeping you warm throughout your dive.
