This product is only for the Evergoods Stow Kit, so you can by an additional one. You only need one of these for your bag.
Stow Kit: The stow kits dock the female half of a v-buckle to the shoulder strap of your bag so you can secure the chest strap when not in use. Pick which of the two options works best for you, or both. Both include a topo TLW engraved buckle, feel free to use it on another bag if you want.
On Strap Stow (Leather): The color matched leather wraps around the webbing slot on the shoulder strap.
Hangar Stow (Not for CB22 or PLC20): This stow hangs down through the hydration sleeve to covertly provide a place to stow the chest strap. Get this stow here.
The orange lines on the elastic part are from discarded parachute lines, yay upcycling!