WFiber
WAnimal fiber
WCarbon fibers
WFiber crop
WPolyethylene
WCarding
WEisengarn
WFibril
WKnitting
WLeaf fiber
WLint (material)
WMercerised cotton
WMilk fiber
WNanofiber
WNatural fiber
WNoil
WPolyaniline nanofibers
WRolag
WRoving
WSambe
WSea silk
WSetralit
WStress fiber
WString (structure)
WTow (fibre)
WTwine
WVulcanized fibre
WWood wool
WYarn
WZari