Plastic bottle with an annular gripping portion

A thermoplastic bottle comprising:

• a bottom wall defining a support plane;
• a neck provided with an opening of the bottle;
• a shoulder connected to the neck;
• and
• a side wall extending longitudinally around a central axis of the bottle between the bottom wall and the shoulder, the side wall having a symmetry plane including the central axis, the side wall having a first line and a second line where the side wall intersects with the symmetry plane,
• wherein the first line is provided with a first point at a radial distance dsl from the central axis which is a minimal distance between the first line and the central axis,
• wherein the second line is provided with a second point at a radial distance ds2 from the central axis, which is a minimal distance between the second line and the central axis and a minimal distance between the side wall and the central axis,
• wherein the following relations are satisfied:
• ds2<ds1
• hs1<hs2,
• where hs1 is a height of the first point and hs2 is a height of the second point, each of the height hs1 of the first point and the height hs2 of the second point being measured parallel to the central axis from the support plane, and
• wherein the side wall comprises at the second line at least one thick portion that extends at and above the second point, said thick portion having a thickness that is greater than a thickness provided in the first line at a same height as the height hs2 of the second point.