Abstract: A composite fabric including a textile support layer which has one or more support members arranged thereupon is provided, particularly for use in clothing garments for sportspersons. Each support member defines a plurality of mutually spaced support formations. Respective pairs of support formations have a flexible membrane portion extending therebetween. Each flexible membrane portion is selectively moveable between a passive configuration, in which it leaves unchanged a fluid flow passing thereover, and an active configuration, in which it initiates turbulent flow in a fluid flow passing thereover.