Amazon.com | adidas Ultra Boost LTD Running Shoe, Black/Black/Silver, 4 M US | Road Running
adidas Running Ultra Boost launch | Wiggle Blog
Forget Soccer—Adidas Challenges Nike to a Foot Race - Bloomberg
Road Trail Run: Review-adidas Ultra Boost: An Experiment on the Soft and "Natural" Side. A Shoe for LSD: Long Slow Distance. Comparison to Energy Boost.