Levi's offers its Levi's Men's 505 Regular-Fit Stretch Jeans in Sargent Cypress for $19.90. Coupon code "40EXTRA" cuts that to $11.94. With $7.50 for shipping, that's $48 off list and the lowest total price we could find. They're available in waist sizes 31 to 28 with 29 to 36 inseams, although not in all width/length combinations. Deal ends April 20.
A close price, Spring offers the for $19.90 with free shipping.