Patagonia's Responsibili-Tee line of staples adds a pop of colour to your wardrobe with minimal environmental impact. This royal blue tee, for example, is cut and sewn from completely recycled polycotton, each one containing 4.8 plastic bottles and 0.26 pounds of fabric scraps and emitting 45% less carbon dioxide than standard counterparts. For an extra vibrant finish, it's screen-printed on the back with the label's famous Fitz Roy mountain branding.