Fantastic Flexible Filaments (which AREN’T TPU)

Looking to stretch beyond standard TPU? This roundup dives into a handful of quirky, super-flexy alternatives—from PEBA rebound filament and airy Foam TPU Air to glass-fiber-reinforced PBT Pro and good ol’ polypropylene. You’ll also find 72D TPU for a sturdier flex and the shape-memory Timemass Active, plus a handy 3D Printing eBook to get you started.

All the links are affiliate (and no one paid to be featured), with some samples sent for free review. Ready to geek out further? Join the Maker’s Muse Community and swap war stories with other filament fanatics!

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