| 摘要 |
There is disclosed a composite sock which consists of an inner stretchable fabric envelope, a bag-like barrier component which is liquid water impermeable, and water vapour permeable, and a second or outer stretchable fabric envelope, the inner envelope being attached to the barrier component, the barrier component being attached to the outer envelope, the arrangement being such as to allow circumferential stretching of the composite sock, characterised in that the inner stretchable fabric envelope or the outer stretchable fabric envelope or both is a circular knitted sock, the composite sock has elastic properties such that it can be stretched at least in the X direction to at least 50 % extension.
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