The present invention relates to footwear which has improved shock absorbency due to a cushioning and has superior support due to a rigid or semi-rigid orthotic plate. The orthotic plate may be removably or securably attachable to the upper, and the padding may be removably or securably attachable to the orthotic plate. The cushioning may further may have supporting blades incorporated therein to counteract any undesired deforming characteristics of the cushioning and/or a bottom plate may be securably or removably attachable to the bottom side of the cushioning. The bottom plate may also have gripping elements which are permanently or removably attachable to the plate to compensate for wear, or for a change in activities. Further, the upper may be removably and attachable and interchanged with other types of removably attachable uppers.