Spring offers the Levi's Men's Tapered Chinos in Harvest Gold for $19.90. Coupon code "LOVE20" drops it to $15.92. With free shipping, that's the lowest total price we could find by $11. They're available in waist sizes 28 to 38 and inseams 32 to 34, although not in all waist/inseam combinations.
Crocs takes 25% off sitewide during its Presidents' Day Sale. (Discounts apply in-cart.) Shipping adds $4.99, or get free shipping on orders of $24.99 or more. Deal ends February 20. A couple of best bets, with prices in-cart: