Under Armour offers its Under Armour Men's HeatGear Armour Compression Leggings
in six colors (Black/Steel pictured) for $23.99
for shipping. Outside of the sellers below, that's the lowest total price we could find by $11. They're available regular and tall sizes S to 4XL, although not in all sizes/colors.
Of note, Amazon
offers select colors and sizes for the same total price or less (as low as $19.74) with free shipping for Prime members. Additionally, Eastbay
charges a close price at $29.99 with free shipping.