An exercise system for a person in an environment, comprising: a case having a base with a selectively openable top and at least one peripheral edge, the top when engaged with the base defining an internal storage volume therein, the top having a top surface for contacting the person, and the base having a bottom surface, characterised in that: the bottom surface of the base includes a low-friction material adapted for facilitating the sliding of the case for contacting an item in the environment, and in that: an anchor device is integrated into the at least one peripheral edge, the top surface, or the bottom surface; at least one resistance band is stored in the internal storage volume of the case and has a plurality of through apertures formed along its length, at least one anchor is fixed via the anchor device with the at least one peripheral edge of the case and adapted for fixing with the at least one resistance band through one of the plurality of apertures thereof; whereby with the at least one resistance band fixed with the case, and with the case pressed against the environment (15, 16, 17) by the person, the person performs exercises by stretching the at least one resistance band. a case having a base with a selectively openable top and at least one peripheral edge, the top when engaged with the base defining an internal storage volume therein, the top having a top surface for contacting the person, and the base having a bottom surface, characterised in that: the bottom surface of the base includes a low-friction material adapted for facilitating the sliding of the case for contacting an item in the environment, and in that: an anchor device is integrated into the at least one peripheral edge, the top surface, or the bottom surface; at least one resistance band is stored in the internal storage volume of the case and has a plurality of through apertures formed along its length, at least one anchor is fixed via the anchor device with the at least one peripheral edge of the case and adapted for fixing with the at least one resistance band through one of the plurality of apertures thereof; whereby with the at least one resistance band fixed with the case, and with the case pressed against the environment (15, 16, 17) by the person, the person performs exercises by stretching the at least one resistance band. the bottom surface of the base includes a low-friction material adapted for facilitating the sliding of the case for contacting an item in the environment, and in that: an anchor device is integrated into the at least one peripheral edge, the top surface, or the bottom surface; at least one resistance band is stored in the internal storage volume of the case and has a plurality of through apertures formed along its length, at least one anchor is fixed via the anchor device with the at least one peripheral edge of the case and adapted for fixing with the at least one resistance band through one of the plurality of apertures thereof; whereby with the at least one resistance band fixed with the case, and with the case pressed against the environment (15, 16, 17) by the person, the person performs exercises by stretching the at least one resistance band. an anchor device is integrated into the at least one peripheral edge, the top surface, or the bottom surface; at least one resistance band is stored in the internal storage volume of the case and has a plurality of through apertures formed along its length, at least one anchor is fixed via the anchor device with the at least one peripheral edge of the case and adapted for fixing with the at least one resistance band through one of the plurality of apertures thereof; whereby with the at least one resistance band fixed with the case, and with the case pressed against the environment (15, 16, 17) by the person, the person performs exercises by stretching the at least one resistance band.