eSUN PEBA 90A Flexible 3D Printer Filament, 0.8kg (1.76lbs) Spool, 70% High Energy Return & Rebound, Lightweight & High Impact Resistance Elastic Material for Footwear, Drone Parts, Grey

Founded in 2002, eSUN compounds polymer in-house and supplies raw material to a number of white-label brands. Their own catalog covers PLA through high-temperature engineering grades — one of the broadest material ranges from a single manufacturer.