A chest protector includes a protective vest portion and a harness portion to hold the vest portion on a user. The harness portion includes a first side strap and a second side strap, each of the first and second side straps being connected to the vest portion on opposing sides of the vest portion; a first slide connected to the first side strap; a second slide connected to the second side strap; a central strap passing through the first slide and the second slide and forming a loop connecting the first and second slides; a vertical strap connected to the central strap; and a strap adjuster connecting the vest portion and the vertical strap. The vertical strap passes through the strap adjuster and a free end of the vertical strap can be pulled to tighten the harness portion around a user. The vertical strap may be the only adjustable strap.