Santi Comfort BZ200 Undersuit – Lightweight Thermal Protection for Drysuit Diving

The Santi Comfort BZ200 Undersuit is a reliable, lightweight thermal solution designed for cold-water drysuit diving. Constructed with Thinsulate™ BZ200 insulation and a breathable, quick-drying interior, this undersuit maintains thermal balance without excess bulk. Ideal for long dives in harsh conditions, the BZ200 offers excellent mobility, moisture control, and comfort - all optimized for layering under a dry suit.

Key Features and Benefits

• Thinsulate™ BZ200 Insulation
  High-grade compressed insulation retains warmth even when damp, while maintaining a slim profile.

• Lightweight Yet Warm
  At 210 g/m² and 1.30 CLO warmth rating, this undersuit offers a strong warmth-to-weight ratio for active divers.

• Moisture-Resistant & Breathable
  Absorbs less than 1% of its weight in water, keeping insulation effective even in humid environments.

• Outer Layer: 100% Polyamide
  Durable, abrasion-resistant, and smooth - makes donning drysuits easier.

• Interior: Micropolar Fleece
  Soft, warm 190 g/m² fleece lining enhances comfort and breathability.

• Dryglove Compatibility
  Integrated air-supply tapes help ensure gloves stay inflated and warm.

• Enhanced Mobility
  Elastic gussets at the waist and arms plus windproof waist panel provide range of motion and warmth retention.

• Practical Storage & Details
  Includes three pockets (one zippered), two-way zipper, and 10 cm wide ankle bands to prevent ride-up.

Detailed Description

The Santi Comfort BZ200 is designed for divers who need dependable insulation under a drysuit without excessive thickness or weight. It utilizes compressed Thinsulate™ BZ200 insulation, which maintains warmth even when wet and minimizes buoyancy shifts over the course of a dive.

With a tough yet breathable polyamide outer shell, the BZ200 glides easily under any dry suit - reducing friction and improving comfort while gearing up. Inside, the soft micropolar fleece adds another layer of insulation and helps wick moisture from your base layer, keeping your core dry and warm.

Elastic panels at the waist and arms allow for flexible movement during pre-dive setup and underwater activity. The undersuit includes thoughtful details like water-resistant cuffs, zippered chest pocket, side storage, and thumb loops for ease when layering with dry gloves. Wide ankle bands keep the legs in place while donning your suit.

Whether you're diving in cold lakes or extended cave environments, the BZ200 is a smart, comfortable choice for your thermal protection system.

Specifications

• Insulation: Thinsulate™ BZ200

• Weight: 210 g/m²

• Warmth Rating: 1.30 CLO

• Outer Shell: 100% Polyamide (6.6)

• Inner Lining: Micropolar fleece, 190 g/m²

• Pockets: 3 (including one zippered)

• Cuffs: Water-resistant

• Zipper: Two-way front zip

• Gussets: Elastic at waist and arms

• Ankle Bands: 10 cm wide elastic

• Dryglove Support: Integrated air-supply tape

• Available Sizes: XS–XXXL (16 standard men's sizes; see the Size Chart Here: all measurements in centimeters)

• Custom Fit: MTM (Made to Measure) option available

Experience warmth without the bulk in the Santi Comfort BZ200 Undersuit. Designed for cold-water divers who value mobility and long-term comfort, it’s the perfect companion to your drysuit system. Choose your size or go made-to-measure - and dive dry, warm, and unrestricted.