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You can turn off snippets by using the following code:

HOWEVER, this will also prevent text snippets from being shown for your search results, so probably not what you want.

The best thing to do would be to go into your analytics and determine how many pageviews Google Instant Preview is generating.  If it's a significant amount, and you feel it's impacting CTR, then spend the effort to create a pretty Javascript-free version.  Otherwise, ignore it (less that 5% of our visitors use Instant Preview, for example).

Here's Google's answer on the webmaster forums:

https://sites.google.com/site/webmasterhelpforum/en/faq-instant-previews#11

Just echoing the other responses, don't ditch the domain (unless you've used any black hat tactics that may be penalizing you).  Keywords in the domain help, but they aren't the be-all-end-all of SEO.

Fabric, as others have pointed out is a pretty broad keyword, but if you want to rank for it, focus on creating more high quality content related to fabric, and go after high value links in your space.  Avoid anchor text over-optimization.

Since you already have a high authority domain, adding more content could bring you more traffic for a whole host of keywords related to fabrics.  Consider starting a blog or create a tips page or Q&A for fabric-related issues.