Piger Works is Thailand’s premier artisanal denim brand, founded in 2010 by engineers Opaspong "Op" Tongnuch and Kongchuch "Moch" Wongrukmit in Nonthaburi. The name is a portmanteau of their Chinese zodiac signs: Op, born in the Year of the Tiger, and Moch, in the Year of the Pig. Dissatisfied with mass-produced options, they established a factory known as "The Cave" to engineer the ultimate pair of jeans. Their philosophy combines heavy-duty industrial engineering with artisanal delicacy, aiming to prove that Thai craftsmanship can rival or exceed the legendary output of Japan’s Okayama prefecture.

The brand is famous for its "heavy-hitter" fabrics, frequently utilizing 20 oz+ custom‑milled Japanese selvedge denim, often featuring long‑staple cottons such as Giza or Memphis for a balance of extreme durability and surprising softness. A standout signature is their hardware: top buttons are often cast from solid 925 sterling silver, a luxurious detail rarely seen elsewhere. Construction is performed on a fleet of vintage Union Special and Singer sewing machines, utilizing poly-core thread for superior strength. Each pair is made in-house at their factory in Nonthaburi, Thailand, ensuring total control over every stitch.