last-minute Mother's Day gift shopping, Amazon’s Mother's Day Sale has Kate Spade bags on sale for $100 off -- right now the Jackson Top Zip Pebble Leather Shoulder Crossbody bag is $114 off and currently priced at $135 (regularly $249) and there are many more deals to check out!The leather crossbody bag is the epitome of a timeless handbag. The medium size satchel features a pebble leather facade, an adjustable crossbody strap and exterior and interior pockets.