To provide a chair, of which legs have leg wings, for touching leg wings to the ground in a stable condition and for containing in a compact size by stacking.

A leg 2 has a main prop 21 and a plurality of leg wings 22 which are radially extended at an equal angle from a lower end section 21a of the main prop 21 as a base end 22a and of which tip ends 22b are touched to the ground. At stacking, one piece of the leg wings 22 of another chair 1 proceeds from the rear to a space between two pieces of the leg wings 22, and a seat 4 is moved to a position where the seat does not bother seats 4 of other chairs 1.