Patent ID: 11857026

Abstract:
[Problem] An object of the present invention is to provide a footwear that reduces deceleration in a traveling direction at landing on the ground and that facilitates acceleration at treading on the ground.[Solution] The present invention provides a footwear comprising a sole having an upper surface on a side that comes in contact with a bottom of a foot and a bottom surface on a side that touches a ground, wherein in a longitudinal cross-sectional view of the sole, an angle β is an angle between a straight line L1 and a plane that the bottom surface of the sole is in contact with, and ranges from 10 degrees to 75 degrees, an angle α is an angle between a straight line L3 and the plane that the bottom surface of the sole is in contact with, and ranges from 5 degrees to 65 degrees, a contact point A is positioned closest to a toe side of points where the bottom surface of the sole is in contact with the plane, a point B is a point of the sole closest to the toe side, the straight line L1 passes through the contact point A and the point B, the line L2 passes through the contact point A and is perpendicular to the plane that the bottom surface of the sole is in contact with, and intersects with the upper surface of the sole at an intersection point C and the straight L3 passes through the intersection point C and the point B.