Santi BZ420x Ladies First

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SANTI – BZ420X Ladies Undersuit – NOW EVEN WARMER.

Introducing the BZ420X, the latest evolution of our best-selling BZ400X undersuit, now even warmer and more advanced! Building on the success of the BZ400X, this new version is designed to offer even better insulation for the coldest diving conditions.

Key Features: 

Upgraded Insulation: The BZ420X continues to use the classic Thinsulate™ material, trusted for over 30 years in the diving industry. This time, we’ve made it even better with enhanced thermal properties, offering superior warmth while maintaining its non-compressive nature underwater.

Thicker Polar Fleece: We’ve replaced the micropolar from the BZ400 with a high-quality standard fleece Thermo Pile 100 for increased warmth and comfort. Designed for intensive wear, thermoactive and breathable fabric, giving freedom of movement.

Reinforced Design: Additional reinforcements with contrast material on the upper chest and shoulders ensure durability in areas prone to wear, without sacrificing flexibility. In men’s version also side pockets.

Modernized Aesthetics: The design has been refreshed, swapping the diamond quilting for a more modern “brick” pattern, offering a sleek, updated look that complements its superior performance.

Comfort and Practicality: The BZ420X retains the signature elastic cuffs, inner suspenders, and convenient air flow ribbons for dry glove systems, ensuring full freedom of movement and ease of use during dives.

Ideal for Extreme Cold: Whether you’re diving in freezing waters or on extended decompression dives, the BZ420X is likely the warmest undersuit on the market.

Additional Details: 

Includes a durable carry bag for easy transport and storage.

Joins SANTI’s lineup as a follow-up to the hugely successful Kango undersuit.

Other Features: 

• two side pockets
• one inside pocket on the left chest
• reflective tapes
• rubber thumb loops, that supply air to dry gloves
• elegant and comfort collar
• two-way zip
• in waist-elastic gusset
• shoulder and knee gussets allowing free movement
• grey inside suspenders
• wide (10 cm) elastic bands at the ankle to prevent the legs from riding up when putting on the drysuit
• specially designed 2 p-valves and 1 heating openings.

Fabric:

Thinsulate™ BZ400 by 3M Insulation, weight 420 g/m2, warmth: 1,80 CLO, weight: 2,1 kg. Thermo Pile (inner layer): Polyester 100% Grammage: 220 g/m2

Contrast material (reinforcement): 72% Nylon, 14% Polyester, 14% Spandex Hi – Abrasion, Hi-Tenacity, Ripstop Grammage: 196g/m2