Patent ID: 7070232

Claim:
A breathable seat comprising: a seat body formed of urethane foam and having venting holes extending in the thickness direction of the urethane foam; a three-dimensional network cushion body incorporated in that region of the seat body which bears a user's body, having a three-dimensional reticulated structure, in which a large number of continuous linear elements of thermoplastic resin are looped windingly so that the respective contact portions thereof are fused together, and communicating with the venting holes; and a seat cover which has breathability and envelops the seat body and the three-dimensional cushion body, wherein the gross sectional area of the venting holes ranges from 1.8 to 76 cm 2 , and the logarithmic decrement of the seat determined by a free-fall damping test ranges from 0.75 to 1.52.