The present disclosure relates to a resistive exercise harness, a rack for use with the harness, and a cart for transporting one or more of the harness, the rack, or weights. The resistive exercise harness can be used to perform various functional movements/exercises and simulate loaded carries/movements relevant to certain occupations/sports/recreations. The resistive exercise harness can promote efficient biomechanics and decrease mechanical stresses on a user's knees and/or lower back relative to other resistive exercises such as a barbell squat. The rack can be assembled in a variety of indoor/outdoor environments for harness usage and disassembled for convenient storage and/or transportation. The cart can interface with the harness and disassembled rack for convenient storage and/or transportation in a variety of indoor/outdoor environments.