That's right, a FABRIC heatsink. The authors of this research paper from Donghua University have investigated the heat transfer properties of a "new heat sink with woven fabric structure, called fabric pin fin heat sink. Effect of the fin length and the material types made of heat sink on the thermal structure response of the pin fin was investigated under forced convection."
The fabric heatsink looks somewhat similar to the prickly side of a Velcro strip, but with longer loops more widely space apart. The researchers tested fabric heatsinks made from Copper, Aluminum and Continuous Carbon Fiber Polymer. "Fin" lengths of 10mm to 30mm were compared against a more traditional pin-fin metal heatsink.![www.frostytech.com]()

You can read the entire paper which is titled; "Evaluation on Heat Transferring Performance of Fabric Heat Sink by Finite Element Modeling", written by Huashuai Zhang, Jiyong Hu, Xudong Yang and Yuling Li of Shanghai's Donghua University, here. [SCIRP.ORG] via [Frostytech.com]