Fourth Element Men's J2 Short Sleeve Base Layer Top - Thermal Performance & Comfort with OceanPositive Recycled Fabric

The Fourth Element J2 Base Layers deliver all-day comfort and reliable thermal performance under your drysuit. Made with OceanPositive recycled fabric using GRS-certified recycled polyester, they provide a soft, next-to-skin feel that helps regulate body temperature on long dives. Designed to be worn as your first layer and paired with a thermal undersuit, J2 base layers offer dependable warmth, flexibility, and eco-conscious performance—packaged without plastic for a lower environmental impact.

• Expedition-Proven Performance – Developed for the demanding J2 caving expedition and tested continuously for 19 days, 24 hours a day, delivering proven reliability in extreme conditions.
• Lightweight & Travel-Ready – Ultra-light and compact design makes it easy to pack and ideal for dive trips, expeditions, and extended adventures.
• Fast Moisture Management – Rapid wicking fabric keeps you dry and comfortable during long dives or high-exertion activities.
• Eco-Conscious OceanPositive Fabric – Crafted using recycled polyester to help reduce environmental impact without compromising performance.
• Comfortable Stretch Fit – Soft, flexible construction (90% recycled polyester / 10% elastane) moves with your body for all-day comfort under a drysuit or thermal layer.