Becksöndergaard do not use PVC in our production due to the negative environmental footprint. Chlorine is the source of concern with PVC, such as the generation of dioxin, a highly carcinogenic chemical produced in both the manufacture and disposal of PVC. At Becksöndergaard all our transparent bags are made from EVA. EVA is a non-chlorinated vinyl and 100% chlorine free. EVA has a more milky look, which makes our transparent bags less transparent than the PVC made bags.