| 摘要 |
Provided are a back pad having comfortable riding feeling and an excellent supporting performance for an occupant even if its thickness is reduced, and a seat for a vehicle having the back pad. A back pad (1) comprises a lumber part (2), a back support part (3) on the upper side of the lumber part, and side parts (4, 4) disposed on both the left and right sides of the lumber part (2) and the back support part (3). The back pad (1) is made of polyurethane foam. Since the hysteretic loss of the back support part (3) is larger than that of the lumber part (2), the vibration absorbing performance of the lumber part (2) may be excellent. The hardness of the lumber part (2) is higher than that of the back support part (3) whereby the performance of supporting the lumber of the occupant may be excellent.
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