Men's J2 Baselayer Long Sleeve Top

Fourth Element
$160.00
$160.00

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Description

Men's J2 Baselayer Long Sleeve Top by Fourth Element

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Next-to-Skin Thermal Engineering for Extended Dive Missions

The foundation of any high-performance drysuit thermal system begins directly against your skin. The Fourth Element Men's J2 Baselayer Long Sleeve Top is engineered as a lightweight, high-output primary layer designed to regulate microclimate temperatures and eliminate cold-causing perspiration. Crafted from a specialized four-way stretch fleece, the J2 creates a streamlined, low-profile barrier that wicks moisture away from your torso instantly—preventing evaporative heat loss during long decompression schedules, technical exploration, or aggressive surface swims.

Silver Ion Antimicrobial Protection & OceanPositive Sustainability

Long-duration expeditions and remote liveaboards often mean wearing the same undergarments across multiple dive days without access to laundry facilities. To combat bacteria and persistent gear odor, the J2 integrates advanced silver ion antimicrobial technology directly into the fabric fibers, keeping the garment fresh dive after dive. Built under Fourth Element’s OceanPositive initiative, the top is constructed from 90% recycled polyester, delivering elite technical performance while protecting ocean ecosystems. Engineered with flat-lock seams to eliminate chafing under heavy harnesses and zippers, the J2 pairs seamlessly under mid-layers like the Arctic or HALO A°R for ultimate cold-water insulation.

Features
  • Next-to-Skin Thermal Foundation: Lightweight knit fleece provides critical initial insulation without adding bulk, ensuring effortless layering under primary drysuit undergarments.
  • High-Velocity Moisture Wicking: Actively pulls perspiration and humidity away from the skin, pushing moisture toward outer layers to keep your core dry and warm.
  • Silver Ion Antimicrobial Technology: Embedded silver ions inhibit bacterial growth and eliminate odors, making it ideal for multi-day dive trips and expeditions where washing isn't an option.
  • Four-Way Stretch Comfort: Elastane-infused fabric moves naturally with your torso and arms, allowing unrestricted reach during valve shutdowns and gear manipulation.
  • Flat-Lock Seam Construction: Smooth, low-profile seams prevent skin irritation and pressure points under drysuit harnesses, shoulder straps, and valves.
  • OceanPositive Engineering: Crafted from 90% recycled polyester, turning post-consumer waste into elite technical diving insulation.
  • Seamless System Integration: Designed to slide smoothly under Fourth Element Arctic, HALO 3D, and HALO A°R thermal garments without bunching or binding.
Specs
  • Brand: Fourth Element
  • Product: Men's J2 Baselayer Long Sleeve Top
  • Material Composition: 90% Recycled Polyester, 10% Elastane
  • Fabric Technology: Silver Ion Antimicrobial Odor Control & OceanPositive Recycled Fibers
  • Fit: Close-fitting anatomical men's cut
  • Seam Construction: Flat-lock stitched
  • Primary Application: Primary drysuit baselayer, multi-day technical diving expeditions, and cold-water layering
  • Care Instructions: Machine wash cold; line dry only; do not bleach, iron, or tumble dry; avoid fabric softeners; dry cleanable if needed
Size Chart

Size Chart

Men's J2 Baselayer Long Sleeve Top Size Chart
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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.

California Proposition 65 Warning

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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