Tire comprising a tread (3), with a tread surface contacting the road surface, a shoulder region (5) partially delimiting the tread (3), and a plurality of complex cutouts (6) extending through the tread (3) and through the shoulder region (5). Each complex cutout (6) comprises a sipe (7) that leads onto the tread surface and a channel (8) that extends the sipe (7) into the depth of the tread and leads onto a surface (9) of the shoulder region (5). Channel (8) of sipe (7) has a main part (11) extending through tread (3) and a widened part (12) extending through shoulder region (5) from the main part of the channel to surface (9) of shoulder region (5). As seen in cross section, the widened part (12) makes, with the surface (9) of the shoulder region (5), an outlet angle δ of less than 90 degrees.