SANTI - Men's Heated BZ420 Undersuit

Santi BZ420x Men's Heated Undergarment: Conquer the Cold, Extend Your Dives

Push your cold-water limits with the Santi BZ420x Men's Heated Undergarment. This advanced version of Santi's premier undersuit is engineered to provide exceptional warmth, allowing you to dive longer and explore more, even in the most extreme conditions.

Key Advancements in the BZ420X:

• Serious Insulation: A thicker, high-quality inner layer (290 g/m²) provides outstanding thermal protection, keeping you warmer even when the heating system isn't active.
• Optimized Heating: The redesigned heating cable layout distributes warmth more effectively across your torso, thighs, and arms.
• Smooth Donning: Getting geared up is easier than ever, thanks to a new, smooth inner lining.
• Enhanced Fit & Movement: The updated "brick" quilting pattern improves flexibility and conforms better to your body.

This undergarment forms the core of Santi's heating system. To operate the heating elements, it must be used with a Santi Thermovalve or Santi Connector and an external battery pack (all sold separately) to function. This design keeps the battery outside the drysuit for operational safety.

The system is capable of reaching a maximum heating temperature of 45°C (113°F) with a maximum power of 110W, and includes temperature and overcurrent protection. Heating elements cover the torso, thighs, and arms, with additional cables in the sleeves ready for connecting heated gloves (sold separately). Practical features include an elastic waistband, P-valve holes on both sides, two side pockets, a dedicated pocket for power cables, water-resistant cuffs with straps to prevent ride-up, and a two-way zipper adds to the ease of use.

BZ420x Men's Heated Undergarment Specifications: