A binding with a medial and/or lateral side portion attached to a binding base and that can pivot or otherwise move about an axis that is generally along a heel-to-toe direction of the binding base. The medial and/or lateral side portions can form part of the binding sidewall and permit a rider to more freely move her feet in medial and/or lateral directions. One or more foot straps may engage with the medial and/or lateral side portions to secure a foot to the binding.