Back section made of crêpe marocain and sustainable jersey – This HALLHUBER blouse top with a lace collar stands for environmentally-conscious style and versatility. Match the top with wide-cut paperbag trousers, for example. think forward. Lenzing™ EcoVero™ is a sustainable viscose fibre with low impact on the environment. The fibre from the House of Lenzing is obtained from certified, European timber. The material has a subtle drape, silky sheen and feels soft against the skin.