A shoe press belt which is an object having the shape of an endless loop with an inner surface and an outer surface , the shoe press belt comprising: - an elastomer body, and - a support structure for the elastomer body, the elastomer body comprising: - a plurality of parallel dewatering grooves on the outer surface of the shoe press belt , wherein a ridge is provided between two adjacent dewatering grooves , and at least a first one of said dewatering grooves comprises: - a first wall of the dewatering groove , - a second wall of the dewatering groove , and - a bottom of the dewatering groove between the first wall and the second wall of the dewatering groove, wherein the first wall of the dewatering groove comprises a plurality of parallel auxiliary grooves of the dewatering groove, preferably extending to the outer surface of the shoe press belt , characterized in that at least one auxiliary groove of the dewatering groove has a slightly curved shape so that the radius of curvature of said at least one auxiliary groove is at least 10 mm. - an elastomer body, and - a support structure for the elastomer body, the elastomer body comprising: - a plurality of parallel dewatering grooves on the outer surface of the shoe press belt , wherein a ridge is provided between two adjacent dewatering grooves , and at least a first one of said dewatering grooves comprises: - a first wall of the dewatering groove , - a second wall of the dewatering groove , and - a bottom of the dewatering groove between the first wall and the second wall of the dewatering groove, wherein the first wall of the dewatering groove comprises a plurality of parallel auxiliary grooves of the dewatering groove, preferably extending to the outer surface of the shoe press belt , characterized in that at least one auxiliary groove of the dewatering groove has a slightly curved shape so that the radius of curvature of said at least one auxiliary groove is at least 10 mm. the elastomer body comprising: - a plurality of parallel dewatering grooves on the outer surface of the shoe press belt , wherein a ridge is provided between two adjacent dewatering grooves , and at least a first one of said dewatering grooves comprises: - a first wall of the dewatering groove , - a second wall of the dewatering groove , and - a bottom of the dewatering groove between the first wall and the second wall of the dewatering groove, - a plurality of parallel dewatering grooves on the outer surface of the shoe press belt , wherein a ridge is provided between two adjacent dewatering grooves , and at least a first one of said dewatering grooves comprises: - a first wall of the dewatering groove , - a second wall of the dewatering groove , and - a bottom of the dewatering groove between the first wall and the second wall of the dewatering groove, - a first wall of the dewatering groove , - a second wall of the dewatering groove , and - a bottom of the dewatering groove between the first wall and the second wall of the dewatering groove, wherein the first wall of the dewatering groove comprises a plurality of parallel auxiliary grooves of the dewatering groove, preferably extending to the outer surface of the shoe press belt , characterized in that at least one auxiliary groove of the dewatering groove has a slightly curved shape so that the radius of curvature of said at least one auxiliary groove is at least 10 mm. <EOS>