This short-cut HALLHUBER cardigan in sustainable yarn with metal buttons in a tone-in-tone colour palette that creates a charming look. Try teaming the cardigan with a long dress and a ballerinas. 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.