Nylon+ Carbon Fiber Filament 1.75mm 1kg/2.2lb, Black – SainSmart.com
Amazon.com: Nylon 12 Filament 1.75mm PA12 3D Printer Filament 1KG 2.2LBS, High Temperature Resistance, High Toughness, Low Water Absorption-White : Industrial & Scientific
All You Need to Know About Nylon for 3D printing - 3Dnatives
MakerBot Nylon-12 Carbon Fiber 3D Printing Filament | MatterHackers
Amazon.com: KODAK 3D printer filament NYLON 12 NATURAL color, +/- 0.03 mm, 750g (1.6lbs) Spool, 2.85 mm. Lowest moisture premium filament in Vacuum Sealed Aluminum Ziploc bag. Fit Most FDM Printers : Industrial & Scientific