Cherry Picker for Virtuemart

Cherry Picker will allow your visitors to filter products by any parameter they want. Just like Amazon.com/Newegg.com.

Features:

1. Support for both Product Types (VM1.1) and Custom Fields (VM2);
2. You can apply as many filters at the same time as you want;
3. Different layouts available: simple list, checkbox list, drop-down;
4. Option to load filters dynamically with Ajax to gain best performance.
5. Supports SEF.
6. In combination with VM Breadz http://extensions.joomla.org/extensions/extension-specific/virtuemart-extensions/10329 
gives a really good experiance to your site.

Read More: Extensions Virtuemart