Levi's offers its Levi's Men's 511 Slim Fit Lightweight Pants in Dress Blues, Fallen Rock, or Black for $18.90 with free shipping. That's the lowest total price we could find by $21. They're available in waist sizes 28 to 38 and lengths 30 and 32, although not in all size/length/color combinations. Deal ends September 1.

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