Polartec NeoShell

Here at Rab we are now using Polartec® NeoShell® fabric in our new Stretch Neo Jackets - these are available for men and women and in 3 great colours for each!


To learn more about NeoShell® we've put together a little information to show you the main features and what performance benefits are offered by this awesome new fabric,  (there's even a short video from Polartec at the end for those of you who prefer your information with a funky soundtrack!!) - pay attention now - there may or may not be a test at the end . . . . .!?


Polartec® Neo Shell® is the first fabric to combine the superior breathability, ventilation, and stretch of a soft shell with the waterproof performance of a hard shell, delivering the best of both worlds. Combining protection from wet weather and unprecedented breathability through dynamic air exchange, Polartec® Neo Shell® dramatically improves the environment inside the garment. Athletes will be drier inside in a wider range of weather conditions and exertion levels than ever before.

Main Features of Polartec® Neo Shell®

  • Waterproof
  • Highly breathable two-way air exchange
  • Blocks 99.9% of the wind
  • Stretch for active comfort
  • Warmth without weight
  • Less noise than a hardshell
  • Machine washable

How does it work?

Polartec® NeoShell® features a proprietary, patented construction process creating a new hydrophobic, microporous, polyurethane membrane with a tightly controlled range of pore sizes. It has the durability and stretch of a polyurethane film plus the breathability of a microporous structure. This unique construction allows positive air exchange to drive moisture vapor release while remaining completely waterproof.

Technical Highlights

Polartec® NeoShell® falls in the sweet spot between traditional soft shells and hard shells delivering the best of both worlds:

  • Waterproof: 10,000+ mm
  • Active air exchange: (.5cfm or 2 l/m2/sec-ISO 9237) significantly enhances breathability
  • Virtually windproof: blocks 99.9% of the wind
  • Durable water repellency
  • Good stretch & recovery for active comfort
  • Quiet and drapable

The Science bit!

Static Breathability: Polartec® NeoShell® meets or exceeds best in class performance for waterproof breathables with RET and RBR vapor transfer tests (ISO11092, ASTM E96, JIS1099) Waterproof: It is currently accepted in the WPB market that 10,000mm (ISO 811/AATCC 127) is waterproof.

Yet some companies like to quote a number that is 1.5 or 2 times higher. It seems a curious claim, because if everyone knows you are dry at 10,000mm, you don’t get drier at 20,000mm. Dry is dry. There is no such thing as twice as dry. In fact in any garment, you’re only as dry as its seams. All leading shell brands considers 3 psi (2100mm) of water resistance at a garment’s seams to be adequate to guaranty waterproofness. Seams are generally considered the weakest link in a waterproof breathable garment. 

The Video!

Below is the information above but in a video format - set to a typicaly inoffensive and bland soundtrack. . . .




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