RE:SIN is a Polish fashion brand whose designs are inspired by the nature and cultures of Poland and Japan: eyewear is adorned with Baltic amber, while silk scarves feature patterns such as the fugu fish. The scarves are designed by Przemek Sobocki, an artist based in Japan. The brand embraces the philosophy of sustainable fashion, complemented by mini handbags made of vegan materials. The uniqueness of the designs and the quality of production have been recognized by publications such as Japanese Vogue. The brand is run by sisters Monika and Karolina Adamczyk.