A latchable, clamping hanger for hanging an exercise mat from an external support. The hanger has a clip with a jaw which can be opened by a user pressing with one hand on the clip. When the clip reaches its ‘open’ position it latches in place, freeing the user to use both hands to lift the mat and insert its upper edge between the clip and the base of the hanger. Once the mat is in place the clip latch is released, and the hanger will hold the mat in an unrolled position so that it can dry flat.