Mens Helly Hansen Work Overalls: Helly Hansen Outerwear. Rugged and durable! The Yarmouth Double Bib pant from Helly Hansen is 450 g/m2 PVC coated Cotton, sun and saltwater resistant, side gusset for easy entry, adjustable suspenders, can be worn back to front for longer wear, generously cut, Micro welded seams, and cold cracked rated to -30C. 70514Helly Hansen