Updated.Originally $20, Macy's marks down the Men's Nike Benassi Swoosh Massage Slides to $17.99. Better yet, they currently take an extra 20% off men's shoes at checkout, dropping the price to just $14.39. These flip flops (only available in black) feature a molded Phylon insole that massages your foot with each step. Shipping is $5.99 and sales tax is charged to states with Macy's retail locations. Spend $75 in men's shoes and your order ships for free.