A breast sport bra and a breast support bra for providing a women wearer with a comfortable breast support, a balance of the breasts, and freedom of movement, the breast support bra includes a first breast cup and a second breast cup. The breast cups are attached to a top portion of horizontal, elastic, breast cup band. The breast cup band is releasably attached the first and second breast cups for separating the cup one from another. A first shoulder strap is attached to a top portion of the first breast cup and an opposite end of the first shoulder strap is attached to a side of the second breast cup and an end portion of the breast cup band. A second shoulder strap is attached to a top portion of the second breast cup and an opposite end of the second shoulder strap crossing the first shoulder strap in an “X” configuration and attached to a side of the first breast cup and an end portion of the breast cup band.