Weight: 5 lb.
Estimated Value: 300 gp
While wearing this cloak, you can use a bonus action to change the style, color, and apparent quality of the garment. The cloak's weight doesn't change. Regardless of its appearance, the cloak can't be anything but a cloak. Although it can duplicate the appearance of other magic cloaks, it doesn’t gain their magical properties.
Source: Xanathar's Guide to Everything p136