With promo code “FLASH”, Macy’s takes up to 78% off Polo underwear, undershirts, bras, pajamas and much more during their flash sale. We’ve pictured the Polo Ralph Lauren Men’s Classic-Fit Crewneck Undershirt 5+1 Bonus Pack for $48 after the coupon code ($32 off and $8 each). Star Rewards members receive free shipping on orders over $39 (it’s free to join). Non-members can pay $10.95 or get free shipping on orders over $49. Pickup is available on most orders, too. This deal ends today. Shop Now at Macy’s