Amazon offers this U.S. Polo Assn. Men's Dress Shirt in Blue Graph Check for $12.46. Coupon code LABORDAY20 cuts it to $9.97. Plus, Prime members bag free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $5.48.) That's $14 under the best price we could find for a similar shirt elsewhere. It's available in select sizes from 15-15.5/32-33 to 18-18.5/34-35. Deal ends September 8.

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