The Bitflex is a Chelsea boot manufactured by Astorflex, an Italian footwear company founded in 1820 and based in Castel d'Ario, Mantova, Italy. The boot uses ideal stitching, a construction method that combines outer stitching along the sole with welt stitching.
The Bitflex uses ideal stitching, also called the ideal method, which combines outer stitching along the sole with welt stitching. This construction technique is used across Astorflex's footwear line and is characteristic of the company's manufacturing approach.
The Bitflex is produced at Astorflex's factory in Castel d'Ario, Mantova, Italy, where the company has been located since its founding in 1820. The company remains family-owned and is currently run by Fabio Travenzoli, the sixth generation family member, who began working at the factory in 1984. His son Giulio Travenzoli represents the seventh generation of the family business.
"About Us". Astorflex. Retrieved November 21, 2025.
"Astorflex: Casual Italian Footwear". Baltzar. Retrieved November 21, 2025.