An exercise apparatus is provided. The exercise apparatus includes upper-body and lower-body sections, the sections being made of a stretchable material that form fits around the wearer. Each of the sections is configured to have coupled thereto a weight, or a plurality of weights, as selected by the wearer. The weights can be positioned and attached to the apparatus at any location on the apparatus as chosen by the user, such that the position and size of the weights is customizable by the individual wearer. Also, the exercise apparatus includes ports for receiving elastic members, the ports being coupled to the apparatus at predetermined locations on the apparatus. The ports allow the wearer to releasably couple an elastic member between any two ports chosen by the wearer, such that the elastic member provides elastic resistance to the wearer as the wearer moves his/her joints in the apparatus.