Description
Women's Xerotherm Baselayer Top by Fourth Element
Precision-Tailored Core Insulation for Cold-Water Diving
A drysuit baselayer is only as effective as its fit; boxy, unisex cuts create dead air space where heat escapes or bunch up uncomfortably under your outer thermal garments. The Fourth Element Women's Xerotherm Baselayer Top is engineered with an anatomical cut specifically tailored to the female torso, mapping contour lines across the shoulders, bust, and waist to eliminate cold spots. Constructed from advanced Polartec® Powerstretch® fabric—originally developed for NASA—this high-performance baselayer locks a boundary layer of insulating air directly against your skin, delivering exceptional thermal retention without restricting upper-body mobility.
Rapid Moisture Wicking & Unrestricted Valve Reach
Perspiration from kitting up on a warm boat deck or tackling a strenuous shore entry can lead to rapid chilling once you descend into cold water. The Women's Xerotherm Top is engineered for high-velocity moisture management, actively pulling sweat away from your core and channeling it toward your outer layers so you stay dry throughout extended runtimes. Remarkable for its ability to preserve thermal insulation even when wet, it protects against sudden core heat loss if you experience a minor neck or wrist seal leak. Streamlined and lightweight, this expedition-tested layer slides easily under heavy drysuit undergarments while giving you complete, binding-free freedom of movement when reaching for cylinder valves or inflator hoses.
Features
- Anatomical Women’s Torso Cut: Engineered specifically for the female form to eliminate excess fabric, prevent under-suit bunching, and maintain consistent thermal contact across the core.
- Polartec® Powerstretch® Insulation: Advanced space-age synthetic knit traps a dedicated layer of warm air against your upper body for maximum cold-water efficiency.
- High-Velocity Moisture Wicking: Rapidly draws perspiration away from your skin during surface intervals and high-exertion swims, preventing evaporative heat loss at depth.
- Zero-Bulk Layering Profile: Streamlined thickness provides substantial thermal value without adding sleeve or shoulder bulk that could impede your trim or buoyancy.
- Insulates Even When Wet: Advanced fiber blend continues to trap critical body heat even if exposed to water from a minor drysuit seal flush.
- Four-Way Stretch Mobility: Elastane-enriched fabric moves fluidly with your shoulders and arms, ensuring effortless reach during valve drills and gear manipulation.
- Expedition-Tested Durability: Tough outer face fabric resists pilling and abrasion caused by friction against outer undergarments and drysuit zippers.
Specs
- Brand: Fourth Element
- Product: Women's Xerotherm Baselayer Top
- Material Composition: 57% Polyester, 33% Nylon, 10% Elastane
- Fabric Technology: Polartec® Powerstretch®
- Fit: Dedicated female anatomical cut
- Wicking Profile: High-velocity moisture wicking
- Primary Application: Women's drysuit upper-body baselayer, cold-water technical scuba diving, and extreme-environment insulation
- Care Instructions: Machine wash cold; line dry only; do not tumble dry, bleach, iron, or dry clean
Size Chart
Female Size Chart
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