Select men's Hanes underwear and undershirts drop from $38 to $29.99 to $22.49 when you add the code HOLIDAY25 at checkout at Kohls.com. This is a price low by about $5. Choose from seven-packs of boxers and eight-packs of undershirts. You can also choose a nine-pack of underwear for the same discounted price. Shipping adds $8.95 or is free on orders over $50, so buy three packs for the biggest savings. You'll also earn $10 in Kohl's Cash for every $50 you spend. Sales tax is charged in most states.