An absorbent body of a diaper has a central absorbent core, a pair of side absorbent cores and a pair of side elastic members. The side elastic members lie left and right of a front portion of the central absorbent core. The side absorbent cores lie left and right of rear and middle portions of the central absorbent core. In the diaper, by contraction of the side elastic members, the side absorbent cores come into close contact with the insides of thighs of a wearer, and urine is prevented from leaking from leg circumferences. Since the side absorbent cores are positioned left and right of the rear and middle portions of the central absorbent core, portions of the wearer’s leg circumferences in the vicinity of the front are not covered with the side absorbent cores, and interference with leg movement of the wearer is prevented.尿布(1)的吸收體(3)係包括:中央吸收核心(411)、一對側部吸收核心(412)、及一對側部彈性構件(47)。側部彈性構件(47)係位於中央吸收核心(411)的前方部(511)的左右。側部吸收核心(412)係位於中央吸收核心(411)的後方部(512)及中央部(513)的左右。在尿布(1)中,藉由側部彈性構件(47)的伸縮,側部吸收核心(412)與戴用者的大腿內側相密接,防止尿等由腿周圍漏出。此外,由於側部吸收核心(412)位於中央吸收核心(411)的後方部(512)及中央部(513)的左右,因此不會有側部吸收核心(412)蓋到戴用者的腿周圍的前方附近的情形,而防止妨礙戴用者的腿部動作。1...尿布3...吸收體11...身體部開口12...腿部開口21...前部外包裝薄片31...中央吸收部32...側部吸收部214...腿部彈性構件215...身體部彈性構件216...密接用彈性構件217...輔助彈性構件
