Patent ID: 7406782

Claim:
A set comprising: a first footwear article ( 1 ) intended for the practice of a first sport comprising: a first rigid shell defining a body ( 2 ) intended to receive the foot of a first user and extending in a longitudinal direction ( 8 ), a second rigid shell defining a top ( 4 ) intended to receive the leg of the user and substantially extending in an upward direction ( 10 ), an articulation ( 6 ) connecting the body and the top having specific mechanical resistance characteristics, a second footwear article ( 101 ) also intended for the practice of a second sport, comprising: a first rigid shell defining a body ( 102 ) intended to receive the foot of a second user and extending in a longitudinal direction ( 108 ), a second rigid shell defining a top ( 104 ) intended to receive the leg of the user and substantially extending in an upwards direction ( 110 ), an articulation ( 106 ) connecting the body and the top having specific mechanical resistance characteristics, wherein, the first shell ( 2 ) of the first footwear article ( 1 ) is substantially identical to the first body ( 102 ) of the second footwear article ( 101 ), the second body ( 4 ) of the first footwear article ( 1 ) and the second body ( 104 ) of the second footwear article ( 101 ) are similar, the mechanical characteristics of the articulation ( 6 ) of the first footwear article ( 1 ) and the mechanical characteristics of the articulation ( 106 ) of the second footwear article ( 101 ) are substantially different in order to correspond to the physiological differences between the first and second user and/or differences between the first and second sport, the articulation of the first footwear article and the articulation of the second footwear article each comprise two elastically deformable members ( 14 , 14 ′) symmetrically arranged in relation to the upward direction ( 10 ), and each elastically deformable member comprises two ribs ( 16 , 18 ; 116 , 118 ; 216 , 218 ) which are substantially inwardly curved and positioned opposite each other.