"From now through August 19th, you can visit any Barneys Co-op or flagship store, and donate your old jeans to a good cause.
Each pair you give will benefit the charity Big Brothers Big Sisters, which pairs at-risk children with mentors.
In case helping kids in need isn't enough to get you to part with your denim, Barneys is sweetening the deal: when you donate a pair of jeans (they don't have to be from a label Barneys sells), you'll get 20% off the purchase of a new pair from the likes of Earnest Sewn, J Brand, Seven, A.P.C., Cheap Monday and TopShop."