A closure system (10) for the front end (11) of a horse rug (12) which holds together the sides (13, 14) of the horse rug (12) over the chest of a horse (indicated by reference numeral 15). The closure system (10) consists of a pair of opposed straps (16, 17), each strap (16, 17) being fixed to a respective side (13, 14) of the rug (12) at the front end (11) thereof, and a connector (18) to which each strap (16, 17) is attachable, the connector (18) being of a shape such that, in use, when the sides (13, 14) of the front end (11) of the rug (12) are brought together and the straps (16, 17) are attached to the connector (18), the connector (18) sits snugly against the horse's chest (at 15), which minimises the possibility of the closure becoming snagged by any obstacles.
