14 October 2026International edition
Vol. I · No.
14 October 2026
AI in Fashion
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Sportswear and outdoor

Petra

United Kingdom

Petra is an independent sportswear label founded by model, engineer and fitness athlete Pietro Boselli. It is designed in London and made in Italy, combining fashion with technical performance.

Facts
FounderPietro Boselli
Design baseLondon
ProductionItaly
MaterialsRecycled polyester and recycled nylon
Websitepetra.design
Segment
Premium
Categories
SportswearMenswear
Sales channels
E-commerceMarketplaces

What is Petra?

Petra, also known as Petra Design, is an independent activewear brand founded by Pietro Boselli, a fashion model who holds a PhD in engineering and works as a professional fitness athlete. The brand sums up its idea in the equation Petra = Fashion + Engineering + Fitness.

Products and positioning

Petra makes garments intended to work both as fashion items and as high-specification training kit. The range is deliberately small and versatile, built around pieces that combine into several outfits for exercise and casual wear:

  • Tank tops and T-shirts
  • Technical shorts
  • Coordinating training pieces

Collections are designed in London and manufactured in Italy, which the brand presents as a guarantee of quality, ethics and sustainability. Fabrics include recycled polyester made from PET bottles and recycled nylon made from fishing nets. Pricing is positioned as reasonable but not cheap, with an emphasis on style and durability.

Distribution

Petra sells online through its own website and through curated marketplaces such as Wolf and Badger.

Why it matters

Petra is an example of a creator-founded performance brand that uses its founder's technical background to position design and engineering at the centre of the product.

Frequently asked questions

Who founded Petra?

Petra was founded by Pietro Boselli, a fashion model, engineering PhD and professional fitness athlete.

Where are Petra clothes made?

Petra garments are designed in London and manufactured in Italy.

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