Review on Black HATCHBOX PA Nylon 3D Printer Filament - 1Kg Spool, 1.75Mm Diameter With +/- 0.05Mm Dimensional Accuracy by Chad Gomez

If you're looking for something that is tough, flexible and prints easily where high temp resistance is not a requirement I find that this prints much easier that other options like TPU on my Prusa MK3. It goes down very easily, with good speed, but watch temps as bridging will sag or fail unless you tune it in well. I found it particularly useful for head straps for Covid 19 mask variants that used printed headbands due to difficulties locating elastic. I've had this for over a year and finally found the perfect use. A great product if you have a particular niche use.