Our own flexible filament, Shore 91A: soft enough for phone cases, gaskets, bumpers and wearables, firm enough to print on a Bowden printer at 20 to 40 mm/s (faster on direct drive). Nozzle 220 to 240°C, bed 40 to 60°C, retraction low or off. Eight colours, 1.75mm, 1kg, stocked in Ontario and shipped within 24 hours. Need a faster-printing flexible? See NinjaTek Cheetah.