Bostanten via Amazon offers the Bostanten Slim Bifold Leather RFID Blocking Wallet in several colors (Coffee-1 pictured) for $17.99. Coupon code "6MJ7STJX" cuts it to $12.59. With free shipping for Prime members, that's $5 off list and the lowest price we could find. It features 10 card slots, two currency pockets, and one ID window. Deal ends July 31.