Container having an improved side-load deformation resistance

A container extending along a main axis and comprising a wall, the container comprising:

• a neck portion,
• a shoulder portion connected to the neck portion,
• a body portion connected to the shoulder portion, the body portion comprising a grip portion,
• a base portion forming a bottom of the container and connected to the body portion, and
• the grip portion comprises, over at least a majority of a dimension along the main axis, a plurality of spiral ribs formed by the wall of the container and spiralling in parallel around the main axis;
• wherein each spiral rib forms a concavity and a spiral tapered edge on an external surface of the wall, wherein, on a first flank of each spiral rib, the wall is smoothly deformed inwardly to form the concavity;
• wherein, on a second flank of each spiral rib, the wall abruptly joins the trajectory of the wall to form the spiral tapered edge, wherein the spiral tapered edge formed by the wall of the container is curved;
• wherein each spiral rib further comprises a strip adjacent to the spiral tapered edge, the strip having a constant width and being defined in a surface of revolution having the main axis as revolution axis;
• and
• wherein the body portion further comprises a label portion between the shoulder portion and the grip portion and adapted to receive a flexible label, wherein a surface of the label portion is flat or comprises annular ribs.