Extra 20% Off Select Sale Items: To receive the additional 20% off select sale items, you must order items found on our Extra 20% Off Sale page. Only items found on the Extra 20% Off Sale page are eligible for the discount. The discount will be applied to the lowest marked price. Discount will be taken at checkout, while supplies last. The offer is not valid on previous purchases or exchange orders and cannot be combined with any other offer. Enter Promotion Code SHERPA20 in the Source Code/Promotion Code/Coupon Code box in your Shopping Bag or in the payment step of Checkout. The offer is valid 12:00 am CDT Monday, May 15, 2017 until 11:59 pm CDT Sunday, May 21, 2017.