Open your (bulging) closets girls. Count how many pairs of jeans you have. You know you have at least a couple pairs you never touch. What's the use of keeping them? Put those blue lovelies to good use by taking them to the Barneys store between August 6 and 19.

Not only will they donate your previously worn jeans to the local Big Brothers and Sisters organization, they will also give you 20% off your next pair. Pick from brands like 7 for all Mankind, 18th Amendment, Citizens of Humanity, Ksubi, J Brand, Nudie Jeans and more.

This offer is only valid at Barneys CO-OP and flagship locations. Donated denim must be in wearable condition.

Now that's a fashion give and take worth participating in!