Clutterless is a minimalistic WP theme best suited for blogs. This theme has a clean design that puts your content into focus. This is a single-column theme with a very functional layout. The theme features an unobtrusive slide-out side panel where you can put your site info. The theme has a free version with limited features.
This minimal WordPress theme is fully responsive so it looks great even on small screen devices. It is also retina optimized. The theme uses AJAX loading content function so it's possible to simply click to load more content without page reload. The theme also includes a theme customizer.