Tanga offers this Hanes Men's ComfortSoft Undershirt 8-Pack in Grey/Black for $19.99 plus $4.99 shipping. That ties our June mention and is the lowest total price we could find by $8. They're available in sizes S to XL.
Hanes Brand Outlet via eBay offers the Hanes Men's Tagless Nano-T Long-Sleeve T-Shirt in 11 colors (Maroon pictured) for $9.49 with free shipping. That's $5 off list price and tied with our March mention as the lowest total price we could find. It's available in sizes S to 3XL, although not in all size/color combinations.