Bottle

A bottle made of a synthetic resin comprising:

• a bottom portion;
• a mouth portion;
• and
• a barrel portion defined by a wall surface extending upwardly from an outer peripheral edge of said bottom portion to said mouth portion, said barrel portion including a panel portion having a smooth surface portion without any irregularity and a plurality of recessed portions equally distributed around a circumference of said barrel portion, each of said recessed portions having four sides at boundaries between said smooth surface portion and said recessed portion and defining a recessed panel surface extending radially inward from said smooth surface portion to the inside of the barrel portion by a specified stepped dimension, said recessed panel surface having a plurality of swelling bodies therein extending radially outward away from said recessed panel surface,
• wherein two of said four sides are longitudinal sides and extend along a longitudinal axis of the bottle and the other two of said four sides are transverse sides and extend along the circumference of the barrel portion transverse to the longitudinal axis, intersections of said transverse sides and said longitudinal sides forming corner portions, said longitudinal sides having a curved arcuate shape extending between adjacent ones of said corner portions to form longitudinally extending column-like portions between adjacent recessed portions, said column-like portions having a narrowest width at an intermediate longitudinal position.