Jack McCollough

Jack McCollough is an American designer, born in Tokyo in 1978 and raised in the United States. He met Lazaro Hernandez at Parsons School of Design; their 2002 thesis collection was bought by Barneys New York and became the foundation of Proenza Schouler. Over two decades, the pair built the label through developed textiles, precise American sportswear and accessories including the PS1 satchel.

McCollough and Hernandez stepped down from operational design at Proenza Schouler in January 2025 while retaining minority interests and board positions. Loewe appointed them joint creative directors on 24 March 2025, effective 7 April, with responsibility for womenswear, menswear, leather goods, accessories and image. Their Spring/Summer 2026 debut introduced the Amazona 180; Fall/Winter 2026 brought their first Loewe menswear and the Whisker bag.

McCollough’s work with Hernandez begins with material development: weaving, leather engineering, printing and industrial processes alter familiar wardrobe forms before surface decoration is considered. At Proenza Schouler, that method sharpened American sportswear through controlled drape and technical finish.

At Loewe, the pair have framed their practice through modern Spanish colour and sensuality, American pragmatism and an industrial idea of craft. Moulded leather, silk Gore-Tex, 3D-printed textiles and laser-bonded volumes place atelier skill inside sleek, functional silhouettes whose complexity is often concealed by the finished object.