Inspired by 35 years of creating advanced sailcloth fabrics, Challenge Outdoor constructed ECOPAK, a textile built from reclaimed plastic bottles that is stronger than traditional laminated nylon. We utilized a variation of ECOPAK, called EPX400, as our main material and RBC400 (Recycled Bag Cloth) as our lining, to create a stunning lineup of eco-friendly gear that is built to handle years of rugged use.