A wearable article wherein least some of the elastic bodies may be arranged in at least 2 sets of a concentrated array defined as meeting: a) one concentrated array is formed by 2-4 elastic bodies; b) each elastic body within one concentrated array is disposed in an inner-interval between each elastic body of 2-4 mm; and c) one specific concentrated array disposed in an extra-interval between at least one neighboring elastic body outside the specific concentrated array of less than 8 mm. The entirety of the length of the belt side edge of the front belt may be seamed with a certain length of the belt side edge of the back belt to define a seam length LS. The front and back belts may each divided into 4 zones wherein at least 2 concentrated arrays are disposed on the front proximal tummy zone or the back distal tummy zone.