Men’s brand Castart (2018) & female counterpart Our Sister (2021) are two emerging Belgian brands with their office & combined flagship store ‘Castart x Our Sister’ in the city center of Antwerp. Both brands are born with the idea of creating garments with heartfelt textures and vibrant colors that are well-balanced.

Castart & Our Sister share similar values but so as within a family also have their own ideologies to further grow internationally in the upcoming years.

 To further grow our brands we are always looking for energic interns in the field of digital, communication and brand marketing to join our Marketing team. We require a minimum internship of 8 weeks.

 Please send relevant portfolio with a covering letter to or come & say hi in store!