Tyre (1) comprising a crown portion (20) comprising a tread (21) and extended axially on each side by sidewalls (30), this tyre being provided with a device (10) for protecting at least one side wall against external attacks and comprising a plurality of raised elements (101, 102) in at least one first circumferential line (C1) and a second circumferential line (C2), the first circumferential line being the closest to the edges (210) of the tread of the tyre, each raised element in the one same circumferential line of suffix i having a maximum height Hi, measured with respect to the surface of the sidewall, the maximum heights Hi of the raised elements (101, 102) of the successive circumferential lines (C1, C2,), progressing from the first circumferential line towards the subsequent ones decreasing, this tyre being such that each raised element comprises an intermediate region of elongate shape in the circumferential direction, this intermediate region comprising two extensions that form a non-zero angle with the intermediate region.
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