Fourth Element has augmented their thermal underwear range with the launch of the J2 collection. These garments were specifically designed for the 2013 deep caving expedition to the Mexican Cheve Cave system, hence the name.
The team spent days underground, therefore they needed base layers that could stand long repetitive wear without the risk of skin infections developing. One way of reducing this risk is to keep the skin dry.
The fabric has a unique knit that minimises contact with the skin, allowing air to circulate, whilst having enough fibres to wick away sweat. In addition the fabric is bacteriostatic and anti-fungal, thanks to anti-microbial silver ions embedded within the fibres of the fabric.
The result is a lightweight compact base layer than can be worn for extended periods beneath a drysuit.