Fitness bag and methods of use

A fitness bag comprising:

• a body elongated along an axis and having a generally circumferential surface, a first axial end surface, and a second axial end surface opposite the first axial end surface;
• the generally circumferential surface having a first radially constricted section between a first and a second radially enlarged section and a second radially constricted section between the first radially enlarged section and the first axial end surface;
• the first radially enlarged section including first and second generally frustoconical portions, the first generally frusto-conical portion sloping radially outwards from the second radially constricted section and the second generally frusto-conical portion sloping radially outwards from the first radially constricted section;
• the second radially enlarged section being between the first radially constricted section and the second axial end surface and including a third generally frusto-conical portion and a generally cylindrical radially enlarged portion, the third generally frustoconical portion sloping radially outwards from the first radially constricted section towards the generally cylindrical radially enlarged portion, the generally cylindrical radially enlarged portion being between the third frusto-conical portion and the second axial end surface;
• and
• a plurality of side handles arranged in radially opposed pairs along the body and oriented such that the ends of each handle extend towards the first and second axial end surfaces wherein a first radially opposed pair of side handles is located on the first radially enlarged section and a second radially opposed pair of side handles is located on the second radially enlarged section.