The invention provides an item of clothing in the form of trousers (1) for use outdoors and/or in hunting, having two trouser legs (2, 3) and a device for protecting against pests. To provide effective protection against pests, the device an internal insert (4), preventing the passage of pests, in particular ticks, is provided in at least one trouser leg (2,3), the lower end (5) of which insert reaches as far as the foot area (6) of the user and the upper end (8) of which insert reaches as far as the foot area (6) of the user and the upper end (8) of which is permanently connected or can be detachably connected to the trouser leg (2,3) on the inside, wherein the connection at the upper end (8) is closed circumferentially to prevent passage of the pest through connection (9).