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Black Isotak 2 Jacket

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Isotak® 2 brings our latest development in highly durable and lightweight waterproof fabrics combined with innovative, highly functional and robust garment design. Isotak® 2 fabric features our proprietary multi-layer composite membrane construction originally developed for Isotak® Ocean combined with a lightweight yet highly durable hightenacity nylon face. The result is an extremely lightweight and highly breathable fabrication with class leading levels of waterproof durability.

Developed to provide extreme levels of weather protection with minimal weight and bulk, Isotak® 2 provides unrivalled levels of flexibility, freedom of movement, comfort and protection. Garment features have been selected to provide the highest levels of comfort and protection with easy to use interfaces specifically designed for extreme conditions. With significant weight and bulk reductions, the Isotak® 2 range is also extremely versatile allowing sailors to use in anything from extreme offshore events through to daytime cruising.

Isotak® 2 now includes our Qulock™seam sealing system as used by our Isotak® Ocean products. The Qulock™ system includes a proprietary seam tape that is carefully tuned to the inner fabric lining to maximise waterproofness. This seam sealing is also applied under strict manufacturing processes, every Isotak® product is pressure tested, so that you can be guaranteed an extremely rugged and durable waterproof seal.

  • Extreme Waterproof Durability
    Isotak Multilayer Membrane - tested & proven to be 4 times better than our competitors
  • 3-layer seam sealed shell
    Our QuLock seam sealing system maximises waterproofness where it matters most
  • Retains Breathability
    Our Isotak fabric and membrane performs well against other waterproof shell materials in lab breathability tests
  • 500D Cordura Reinforcement
    In seat, to provide added durability against wear
  • PFD Compatible Hood
    Easy to operate with one hand
  • Fast drying Hydrobase Lining
    In collar and pockets to provide comfort & warmth
  • Offshore collar with removable face shield
    With Hydrobase lining
  • Reflexite Patches on shoulders, wrist and hood
    For increased visibility at night & for the most durable zips
  • Large front cargo pockets
    With internal welded chest pocket
  • Hydrobase lined side entry pockets
    For hand warming
  • YKK Aquaguard Zippers
    Highest quality, durable water resistant zippers
  • Adjustable PU cuff wrist seals
    Soft wrist seals built to keep water out
Highly Durable
3-Layer Fabric
4X More Waterproof Durable
Highly Breathable
DWR Coating
Multi-layer Composite Membrane
Fully Seam Sealed
YKK Vislon Zippers



RMIT have pioneered the development of a waterproof durability testing method specifically designed to simulate accelerated wear and tear in wet conditions (when the waterproof membrane is most vulnerable). The results of their study is now published in the Textile Research Journal.

This method involves placing waterproof textiles in an accelerated wear device that simulates impact and abrasion in wet conditions. Each textile is pressure tested to determine the waterproofness after defined intervals of accelerated wear.

The chart below represents the hydrostatic resistance (Waterproofness) of each fabric after 30, 60, 90 and 120 minute accelerated wearing.

After four times (4 x) more accelerated wear testing, Zhik® Isotak® fabrics are substantially more waterproof than Musto® HPX PRO SERIES fabrics. (120 minutes as compared to 30 minutes of accelerated wear testing)

Durability of vapor-permeable waterproof textile materials used in sailing protective apparel
Olga Troynikov, Nazia Nawaz, Chris Watson, Textile Research Journal
copyright © 2017 by (The Authors)

Reprinted by Permission of SAGE Publications, Ltd.


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