Undersuits and Base Layers
There are 55 products.
Arctic men's leggings -...

The Arctic leggings feature secure foot loops to keep leggings in place when donning the drysuit
Arctic Socks - Fourth Element

The Arctic drysuit undersuit is complemented by the Arctic socks, which completes the thermal protection system, offering low bulk thermal protection to the extremities.
Xerotherm Hat - Fourth Element
This is the perfect complement to the rest of the Xerotherm range. Effective wet or dry, the beanie hat is the ideal thing to stash in a dive bag, or even the pocket of a BCD to put on to warm up after a dive.
J2 Mens Top - Fourth Element

A simple, close fitting design with flat seams for next to skin comfort offers the perfect solution under any drysuit underwear
J2 Mens Leggings - Fourth...

Comfortable soft waistband and flat seams maximise next to skin comfort.