Fourth Element Men's Xerotherm Long Sleeve Top

Build warmth from the first layer with the Xerotherm Long Sleeve Top. Lightweight and exceptionally fast-wicking, it traps an insulating layer of air next to your skin to keep you drier and more comfortable beneath your drysuit.

Key Features & Benefits

• Warmth without bulk: Polartec® Powerstretch®, originally developed for NASA, traps air next to your skin for effective thermal insulation.

• Exceptional moisture management: The fastest-wicking fabric in the Fourth Element range draws moisture through fine fibres and spreads it across the outer surface, helping preserve a drier layer next to your skin.

• Performs when wet: Continues to manage moisture when damp, helping maintain comfort during minor drysuit leaks.

• Flexible layering: Wear beneath another thermal undersuit, or on its own beneath a neoprene drysuit.

• Coverage that stays put: A long body helps prevent gaps between your top and leggings.

• Smooth against your skin: Flat seams minimise friction for comfortable next-to-skin wear.

• Easier donning: Thumb loops hold the sleeves in place while putting on your drysuit. Before diving, remove them from your thumbs and push them back inside the wrist seals.

• Lightweight with low buoyancy: Provides thermal protection with minimal bulk and buoyancy.

• Made for regular use: Hardwearing, machine-washable fabric makes care straightforward.

• Proven in demanding conditions: Tested by underwater filmmaker Doug Allan in -2°C water in Svalbard while filming for the BBC’s The Blue Planet. Specified by FBI Dive Teams, the Norwegian Navy and British Police Diving Units.

Fabric & Care

• Composition: 57% polyester, 33% nylon, 10% elastane.
• Machine wash cold.
• Line dry; do not tumble dry.