Absorbent article

An absorbent article which includes a longitudinal direction, a width direction, and a thickness direction that are mutually orthogonal to each other, comprising:

• an absorbent main body;
• a pair of side flaps that extend to both outer sides in the width direction of the absorbent main body;
• and a pair of leakage barriers that are disposed in the absorbent main body, wherein a direction toward and a direction away from a longitudinal direction central axis of the absorbent main body in the width direction are respectively an inner side direction and an outer side direction,
• the absorbent article further comprising:
• an elastic member which is joined in between the pair of side flaps in the absorbent main body, and is stretchable and shrinkable in the width direction,
• wherein each of the pair of leakage barriers includes:
• a standing portion in which an outer side end in the width direction is a fixed end, and an inner side end in the width direction is a free end, and
• a supporting portion which is adjacent to one end portion in the longitudinal direction of the standing portion and overlaps with the elastic member in the thickness direction,
• the supporting portion includes:
• an inner side portion which is positioned on an inner side in the width direction and is not fixed to the absorbent main body, and
• an outer side portion which is positioned on an outer side in the width direction and is fixed to the absorbent main body by a heat welding portion, and
• the inner side portion covers at least a portion of the heat welding portion of the outer side portion in a state of being reversed toward the outer side in the width direction.