Imprint is a responsive wordpress theme released under GPL license. It contains some of the best theme features like Options Panel, primary menu, bottom menu, 2 sidebars including a 3/4 sidebar footerbox, typographic options, color options and various other layout related options.

Imprint Features List
Fixed vs Responsive Layout (choose any).
Primary and Bottom Menu.
Beautiful and sleek Menu design.
Toggle primary menu above and below slideshow
Main Sidebar (can be displayed either on Left or Right)
Top Sidebar (displayed on the side of Logo)
Footer box (can container either 3 or 4 sidebars)
Change the number of sidebars in Footerbox with ease.
Logo (insert your own logo image)
Design site logo text easily
Favicon (insert your own favicon icon)
Featured image feature available
Slideshow can be build with few clicks
Uses Flexslider plugin for Slideshows
Almost every aspect of slideshow can be configured.
Both featured image and slideshow can be toggled/disabled easily
Showing social profiles made easy.
Uses font awesome to build social icons
Beautiful Admin Panel with a tonne of options.
Fonts (default websafe fonts can be applied with ease.)
Custom CSS (insert your own CSS code with ease)
Released under GPL version 2 License.