Abstract: The invention relates to a tent or sun protection structure (1), in which a canvas, a cloth, a fabric, a sheet or the like (2) is tensioned using at least one flexible supporting pole. In order to achieve a stable structure, the supporting pole is bent into an open or closed loop, the free ends of which (3?, 3?)are braced with the vertex area (5) of the loop—with the supporting pole including tensioned canvas being bent into a convex structure, and wherein the structure is placed on the ground with the free ends (3?, 3?) of the supporting pole (3) and the vertex area (5) of the loop and anchored there, if necessary.