thanks for your responses. i am still researching.. this was interesting thought i would share.
How good are the non-leather textile alternatives?
It's hard to say. We have found only 5 textile garments that have actually passed independent tests against the EU Standard. This doesn't mean the other products don't or wouldn't pass the Standards, but we have yet to see the evidence.
Note: Jackets with impact protectors will often have CE labels (EN 1621-1 or EN 1621-2). These labels only refer to the impact protectors, they do not include the jacket, which must be labelled EN 13595 if it complies.
It is worth noting that none of those that have passed the tests rely on a single layer of material to achieve the result, they all employ a number of layers, each with a different job.
Under the EU Standards, material used in motorcycle protective clothing must have abrasion resistance of between 4 and 7 seconds for use over the high impact areas of the body (Zone 1 and 2). Just to put this in context, a single layer of 1.4 mm cow hide will last 5.8 seconds, while 200 gsm denim (or your standard jeans), will last just over half (0.6) of a second (SATRA, 2002).
Tests conducted at the British test laboratory SATRA (SATRA, 2002 and at the Melbourne Institute of Textiles (Standards Australia, 2000), found many of the modern textile alternatives fail to meet the standards when tested as a single layer.
This does not mean that such fabrics are necessarily unsuitable, because it depends on how they are used. Fabric weight, coatings or finish can make a significant difference to test results. The design and construction of the garment is also crucial in determining its protective value.
The only way to determine whether a particular fabric is suitable for motorcycle protective clothing is to test samples of the completed garment. That is why the European Standard labelling system is so useful to motorcycle consumers. However given that many of the products available in Australia, are not subjected to the EU testing system, here are some design features that will help to guide you in your selection.
http://www.roadsafety.mccofnsw.org.au/a/88.html