Fourth Element Xerotherm Beanie Hat

By Fourth Element | SKU: XT2501HSM | High-Wicking Thermal Fabric | Unisex Fit

Keep body heat where it belongs with the Fourth Element Xerotherm Beanie Hat. Originally developed for NASA and tested in the world's most challenging diving environments, the Xerotherm fabric is the ultimate thermal base layer material—designed to trap insulating air while pulling moisture rapidly away from your skin.

Available at International Diving Centre—Vancouver's destination for cold-water exposure gear—this versatile beanie fits comfortably under neoprene or silicone hoods as a thermal liner, or works as an essential post-dive surface hat on chilly boat rides and surface intervals.

Key Performance Features

• Advanced Wicking Performance: Rapidly pulls perspiration away from hair and scalp to maintain dry, efficient thermal insulation.
• Low-Bulk Contour Design: Streamlined, flat-stitched profile fits comfortably under a drysuit hood as an extra thermal liner without causing pressure points.
• Pre- and Post-Dive Thermal Protection: Excellent surface interval headwear to prevent evaporative heat loss on cold dive decks and rib boats.
• 4-Way Stretch Comfort: Flexible fabric construction contours snugly to various head sizes while maintaining shape over repeated wash cycles.
• Machine Washable: Quick-drying material makes cleaning and maintaining your dive thermal gear simple.

Technical Specifications