There is a heat transfer vinyl for Nylon
http://www.specialty-graphics.com/easyweed_extra_vinyl.htmlTheir sister vinyl is good for all other garments. Roger also sells a great series of vinyl.
WWW.heatpressvinyl.comNike and others have some garments that use nylon as a component of the garment. Nylon will melt at the temperatures used in heat transfer.
If you want a good product, easily available that has the dri technology look at the Vapor line.
http://www.dyetrans.com/sublimation-blank-vapor-apparel.phpIt is 100% poly material that feels like spun cotton in most cases.
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