| 摘要 |
<p>The seat, designed to adapt to the shape of the user's body, has a base (2) and side walls (3) made from a rigid, semi-rigid and/or impermeable material, and a top cover (5) made at least partly from an elastic and permeable material. The material used for the base and/or side walls is supple, impermeable and non-stretch, joined together and to the top cover e.g. by seams to make a pouch containing the non-compressible material, which fills its entire volume. In a variant the seat can be contained in an outer ring of a rigid material, rubber or synthetic foam, or inflatable.</p> |
