iBlog is a clean responsive Tumblr theme with multiple options.
Features
All post types supported
Responsive Layout
Infinite Scrolling
Pagination number buttons
API Integration – Instagram Photos, Pinterest Pins, Dribbble Shots, Flickr Photostream
Social Media Share Counters – Linkedin, Twitter, Pinterest, and Facebook
Tag Cloud
Social Media Icons
Image Sliders – Full Width & Boxed Layout
Owl Carousel – Image Sliders & API Images
Responsive Photosets
Disqus & Google Analytics
Sidebar repositions in mobile devices
Layout Combination 1: Posts column + Sidebar
Layout Combination 2: Posts column + Sidebar + Full Width Slider
Layout Combination 3: Posts column + Full Width Slider
Layout Combination 4: Posts column + Sidebar + Boxed Slider
Layout Combination 5: Posts column + Boxed Slider
Layout Combination 6: Posts column = Header gets smaller to fit the content width.
etc…