Brooks Brothers takes up to 70% offclearance apparel, shoes, and accessories. (Prices are as marked.) Shipping starts at $5.95, although orders of $250 or more qualify for free shipping. Sizes and stock may be limited in some styles. A couple of best bets, both with $10.95 for shipping:
Crocs via eBay offers the Crocs Unisex Modi Sport Realtree Max-4 Flip Flops in Chocolate/Khaki for $22.99 with free shipping. That's the best price we could find by $9. They're available in select men's sizes from 4 to 15 and women's sizes from 6 to 10 12.