An end cap assembly for a strap is provided. The end cap assembly includes an end closure and slider. The end closure has a base, a pair of spaced apart arms extending from the base, and a locking element connected to at least one of the pair of spaced apart arms. The base and pair of spaced apart arms define a holder for receiving the strap. The slider has a body defining a cavity from a first to a second end of the body, the cavity sized to receive the strap. The slider is moveable between an unlocked and a locked position. In the unlocked position, the slider body is slideable along a length of the strap. In the locked position, a first end of the slider is adjacent to the base of the end closure and the locking element of the end closure is engaged with the slider.