An article of footwear promotes complimentary movement and proprioceptive feedback of a user's foot (e.g., to help an infant learn to walk or an adult balance on an uneven surface) while wearing the article of footwear. The article of footwear includes an outsole having a forefoot region, a heel region, and a mid region substantially in between the forefoot and heel regions. The three regions are configured to provide complimentary movement with respect to the user's foot. The forefoot region of the outsole includes a base portion interconnecting ground contact pads configured to move relative to one another, each ground contact pad moving substantially independently of the other relative to the base portion.