With excellent anti-microbial performance thanks to the use of silver ion technology, and outstanding wicking from a unique fabric, the J2 baselayer is designed for extended use under a drysuit.

Keeping the skin dry can be critical to success, whether it is staying warm, or preventing infections. The J2 baselayer was designed to wick perspiration away from the skin and maintain a dry zone next to the skin. Air is a better insulator than water and consequently, the baselayer ensures better thermal protection.

The J2 baselayer system takes this performance further with tried and tested anti-microbial silver ions embedded within the fibres of the fabric. This enables long, repetitive wear without the risk of skin infections developing – something which was critical on the US Deep Caving Team’s 2013 expedition to explore the Cheve cave system in Mexico, for which the J2 was specifically developed.

The J2 wicking performance also comes into its own when the fabric gets wet. Water is wicked away from the skin, and with the right combination of drysuit underwear, further away though the fibres of the undersuit. Even in the event of a suit flood, the J2 will retain some of its performance.

Silver ions are incorporated into the fibres when they are manufactured, ensuring that the bacteriostatic and antifungal properties of the fabric last. This cannot be washed off. The silver ions prevent the formation of bacterial cell membranes, preventing most bacteria from growing in the fibres of the garment. However, this will not adversely affect the naturally occurring bacteria on the skin itself.

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

What to wear when scuba diving?

Download our Layering Guide!

Getting your gear right can make or break a dive! We’re here to explain baselayers, undersuits, and what to wear for certain dive conditions, along with some hints and tips along the way.

Developed for J2 caving expedition
Tested for 19 days, 24hrs a day
Anti-microbial silver ion technology
Lightweight and compact
Fast wicking
Extreme performance
Perfect for extended drysuit diving

96% Polyester
4% Elastane

Slim fitting baselayer, should sit next to skin.
Tiri wears size Large and is 5’9 / Chest 36″ / Waist 30″ / Hips 40″
See our SIZE MATTERS page here for more advise on finding the best fit