Built for the demands of the US Deep Caving Team’s Cheve expedition, the J2 baselayer is engineered to keep you dry, fresh and warm when dives get long and conditions get harsh. Its unique knit moves perspiration away from the skin at speed, maintaining a drier micro-climate where air insulates better than water—so you stay warmer with less bulk.
Permanent silver-ion technology is embedded into every fiber to provide outstanding, non-wash-out anti-microbial performance, helping prevent odor and skin issues during repetitive wear. Even if your drysuit or undersuit gets damp, J2 continues to wick moisture through your layering system so you can finish the dive comfortable and focused.
A soft, low-profile waistband and flatlock seams maximize next-to-skin comfort. Lightweight, compact and fast-drying, J2 is the go-to first layer for expedition divers and anyone who values reliable performance under a drysuit.
Fabric & Care
- 90% Polyester / 10% Elastane
- Machine wash cold; mild detergent
- Avoid fabric softeners & bleach
- Line dry; do not iron
Fit Guidance
Slim, next-to-skin baselayer. If between sizes, choose the larger for comfort under thicker undersuits.
Note: Silver-ion treatment is locked into the fibers and does not wash out. It does not adversely affect the skin’s natural microbiome.
Related Underwater Gear Categories:
- Extensive Collection of Scuba Equipment
- Comprehensive Range of Fourth Element gear
- Wide Array of Rash Guards and Dive Skins
- Dive Travel Packages with Bluewater Dive Travel
Detailed Specifications
| Product Type | Men’s thermal baselayer leggings for drysuit diving |
| Series | Fourth Element J2 Baselayer System |
| Fabric Composition | 90% Polyester / 10% Elastane with silver-ion technology |
| Anti-Microbial Treatment | Permanent silver ions embedded into the fibers – will not wash out |
| Wicking Performance | High-speed moisture transfer from skin to outer layers |
| Thermal Performance | Maintains warmth even when wet; keeps a dry air layer next to skin |
| Seams | Flatlock stitching for next-to-skin comfort |
| Waistband | Soft, low-profile elastic waistband |
| Fit Type | Slim fit – designed to sit directly on the skin |
| Ideal For | Cold-water drysuit diving, caving, expedition diving, extended use |
| Color | Dark grey / charcoal |
| Care Instructions | Machine wash cold; no fabric softeners; line dry; do not bleach or iron |
| Weight | Approx. 0.45 kg (1.0 lb) |
| Country of Manufacture | Made in the EU or UK (depending on batch) |
- Fourth Element J2 Leggings (Men’s)
- Recyclable product sleeve/label (may vary by region)
Men’s Size Guide — J2 Leggings
Body measurements. Ranges shown in cm with (inches) in brackets.
| Size | Inside Leg cm (inch) |
Height cm (inch) |
Chest cm (inch) |
Waist cm (inch) |
|---|---|---|---|---|
| X Small | 76–80 (30–31.5) | 165–172.5 (65–68) | 76–86 (30–34.2) | 58–68 (23–27) |
| Small | 79–83 (31–32.5) | 170–178 (67–70) | 86–96 (34–38.2) | 68–78 (27–30.5) |
| Medium | 82–86 (32.5–34) | 175.5–183 (69–72) | 96–106 (38–42.2) | 78–88 (30.5–34.5) |
| Large | 85–89 (33.5–35) | 180.5–188 (71–74) | 106–116 (41.5–46.2) | 88–98 (34.5–38.5) |
| X Large | 88–92 (34.5–36) | 185.5–193 (73–76) | 116–126 (45.5–50.2) | 98–108 (38.5–42.5) |
| XX Large | 91–95 (36–37.5) | 190.5–198 (75–78) | 126–136 (49.5–54.2) | 108–118 (42.5–46.5) |
| XXX Large | 94–98 (37–38.5) | 195.5–203 (77–80) | 136–146 (53.5–58.2) | 118–128 (46.5–50.5) |
Why Buy from Bluewater
1. Proof of Expertise
- Authorized Fourth Element dive gear dealer — full manufacturer warranty.
- Founded and staffed by active divers, underwater photographers, and explorers.
- Decades of combined hands-on experience with the gear we sell.
- We test and use most of the equipment ourselves before recommending it.
2. Risk-Free Purchase (See Terms Of Service)
- 30-day, hassle-free returns (unused condition).
- Secure payment with trusted gateways (credit card, PayPal, etc.).
- All products shipped in factory-sealed boxes (unless stated).
- Transparent policies — no hidden fees or fine-print surprises.
3. Fast & Reliable Delivery
- Free U.S. shipping over $200 for Photo Gear & $50 for Dive Gear.
- Same-day dispatch on in-stock orders placed before 12pm.
- Worldwide shipping options with reliable carriers.
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4. Extra Value at No Extra Cost
- Lifetime product support by email, phone, or in-store.
- Setup help & usage tips tailored to your needs.
- Exclusive buyer’s guides, tutorials, and dive trip invitations.
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5. Social Proof & Community
- Thousands of satisfied divers & underwater photographers worldwide.
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6. Personal Connection
- Direct line to our in-house experts — no outsourced call centers.
- Friendly, passionate staff who speak “diver” fluently.
- We care about your whole adventure, not just the sale.
We offer lifetime support with all purchases.
Please call or email us with any questions; our knowledgeable staff would love to assist you.
