| 摘要 |
A cushion, generally indicated, comprises a foam portion and a gel portion. The foam portion has a rear section defining a cavity, while the front section is shaped to support the users' thighs. The gel portion comprise a gel sac, which substantially fills the cavity and an overlay that extends over the gel sac and the front section of foam. The overlay is attached to the bag to maintain their relative portions, but gel cannot flow between them. |
