As one of its daily deals, Tanga offers the Calvin Klein Men's Body Trunk Boxer Briefs 3-Pack
or Black, model no. U1704,
for shipping ($7.66/pair). That's $31 under the lowest total price we could find for this quantity elsewhere. (For further comparison, it's $6 under our expired mention of a 4-pack a week ago.) They're available in sizes S to XL, although not all size/color combinations are available. Deal ends August 12 at 10 am ET.
Update: Even better, add coupon code "DEALNEWS" to lower them to $17.99.