Pine IV Jeans - Environmental Denim? Pine IV jeans is a line of denim out of Redmond, WA. Pine IV jeans are billed as sweet and sexy…yet tough. Painful marketing at best! That said, Pine IV’s main attribute is the brand’s ennvironmental credentials. For every pair of Pine IV jeans sold, the brand will plant a tree on the customer’s behalf through the American Forests program. Whether it’s a gimmick or not if they’re true to their word it can’t be bad!