Women's Xerotherm Baselayer Top

Fourth Element
$249.00
$249.00

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Description

Women's Xerotherm Baselayer Top by Fourth Element

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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

Women's Xerotherm Baselayer Top Female Size Chart
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Product Q&A

Easy Returns

60-Day Hassle-Free Returns

Not the perfect fit? No problem. We offer a 100% credit or refund on any item returned within 60 days, as long as it's in new, unused condition with its original packaging. We want you to be happy with your gear, period.

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Your security is our top priority. We use the latest encryption technology to ensure your personal information is 100% safe, so you can shop with total peace of mind. Not comfortable ordering online? Give us a call at (815) 267-8400 and we'll gladly help you over the phone.

Full Manufacturer's Warranty

Authorized Retailer for Fourth Element

We are an Authorized Dealer for every single brand we sell. This means you are getting 100% authentic gear, and your purchase is fully protected by the manufacturer's warranty. No gray-market gear, no warranty worries. We've got your back.

Our Promise to You

We\’re Divers, Just Like You

Our promise is that you get the right gear, and that it's right the first time. As divers ourselves, we'll help you find the perfect fit for your style of diving. Then, we'll quality-inspect your order before it ships to ensure it's ready for your next adventure. We're your local dive shop, no matter where you are.

Proposition 65

Safe Water and Toxic Enforcement Act of 1986 – Warnings Required

WARNING: This Dive Right In Scuba product can expose you to certain chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to  www.P65Warnings.ca.gov

We appreciate your decision to purchase Dive Right In Scuba products to provide the best in water experience. We take our job seriously! You may have noticed that our products now show a warning label at point of sale referring to carcinogens and birth defects. You may also have begun to see warnings related to carcinogenic substances or substances causing birth defects prominently displayed in hotel lobbies, hospitals, or other places of business recently. These warnings are required by the State of California, and we believe that an explanation of the California statute legislating the requirement will provide you valuable information regarding the relative risks of the chemicals that may be present in consumer products.

In 1986, the State of California passed the Safe Drinking Water and Toxic Enforcement Act; otherwise known as “Proposition 65” or "Prop 65". Prop 65 requires businesses like ours to disclose to individuals the presence of chemicals listed in the Act prior to point of sale. The regulations implementing this Act have been amended over time with the most recent updates will take effect on August 30, 2018. There are more than 900 chemicals on the Prop 65 Chemical List, including many chemicals that are found in components of a wide array of consumer goods or are used to manufacture components that make up consumer goods.

Prop 65 does not establish acceptable concentrations for any listed chemical; however, the agency which enforces it has established what is called "safe harbor" exposure levels for about one third of these chemicals below which warnings are not required. These "safe harbor" are established for listed carcinogens based on the quantity of the chemical that would result in one excess case of cancer in an exposed population of 100,000, assuming lifetime (70-year) exposure at the level in question. A similar process is used to establish safe harbor levels for listed reproductive toxicants. Additional information in plain language on safe harbor levels is available from the California Office of Environmental Health Hazard Assessment at http://oehha.ca.gov/Prop65/background/p65plain.html

At Dive Right In Scuba, the safety of your in water experience is our highest priority. We go to great effort to select materials that offer superior value, quality, and durability while also being generally recognized as safe and reliable for the full life of the product. Dive Right In Scuba also works closely with many regulatory bodies, such as the US Coast Guard and Underwriter’s Laboratories, to ensure the longevity of your on-water safety through targeted selection of durable, long lasting materials and components that undergo significant validation testing before being used to manufacture end items. Sometimes the safety promise we offer appears at odds with the health and safety requirements of other legislation in certain parts of the world when some regulations are updated ahead of others. To ensure compliance with applicable legal requirements, Dive Right In Scuba has placed a warning on products that contain a Prop 65 listed chemical, either directly or as a part of the raw material supply chain. This allows us to comply with California law and provide our California consumers with the disclosure required by Prop 65, while still promising the safest on water experience possible.

Dive Right In Scuba is working diligently with regulatory bodies and our own manufacturing partners to continue to continue to improve our product performance and reduce the presence of less desirable chemicals. Water is a precious resource we all share that is important to the health and well-being of our planet and all people. Our goal is to continue to enhance your water life experience while reducing our overall impact to the planet and, in particular, its waterways. While it is a bit of a juggling act to achieve, we are confident you will see continued improvement in both the immediate and long term future. We hope this explanation will enable you to understand why you will be seeing warnings on some our products.

Thank you for your continued use of Dive Right In Scuba products.

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