Helly Hansen Mandal Foul Weather BibHelly Hansens Tvedestrand Bib is an affordable medium weight bib that is most utilized in the recreational fishing industry. While its not suited for tough commercial work, the Tvedstrand is more than adequate for your light duty needs. Constructed from a 400 gram, 0. 35 mm PVC coated fabric, the Tvedstrand can withstand mild to moderate weather conditions. Helly Hansens Tvesdestrand Bibs are certified by the European Standard for Waterproofing to