Before you ditch that old pair of jeans, you may want to recycle it instead. Thanks to a new Madewell initiative, doing so can save you some money. The clothing company is launching 'Madewell Forever,' a shopping platform dedicated to pre-loved denim. It's powered by online thrift retailer ThredUp. The platform is kicking off with more than 3,000 styles ranging in price from $30 to $50. Liz Hershfield, senior vice president and head of sustainability at J. Crew Group explains how the program works.