The code gives you an extra 30% off the sale price.
Brad's Deals Editor Jim,
These women's High-Rise True Skinny Jeans with Secret Smoothing Pockets list at $79.95 and were already on sale for $29.99, but the price falls to $20.99 when you apply the code BEST in your cart at Gap.com. Similar jeans sell for more than $29 elsewhere, and these are only available at Gap. Shipping is free when you spend more than $50. Otherwise, it adds $7. Sales tax is charged in most states.