To provide trousers easy to open an opening closing part of a waist part in performing urination so as to allow easy urination.

The trousers are obtained by providing vertical internal and external opening closing parts 18 and 19 at a waist part 11 and the central part of the front body of a waist belt part 14, reaching from the vicinity of a crotch 17 to the waist belt part 14, and providing a shielding part 20 which extends in the waist direction relative to the side edge 18a of the vertical direction of the internal opening closing part 18. The upper ends of both the opening closing parts 18 and 19 are made connectable to each other with a first hook H1. The upper end of the shielding part 20 is made connectable to the waist belt part 14 with a second hook H2. Since a slide fastener of the opening closing parts 18 and 19 of the waist part 11 can be omitted, it is possible to easily open and close both the opening closing parts 18 and 19 and easily perform urination.