eBay has the Dockers Men's Devon Active Sandals (Brown or Black) for $25 with free shipping. Available in sizes 8 to 13.
Columbia has the Columbia Vent Cush Men's Flip Flop Sandals (multiple colors) for $18 - $4 off with coupon COLJULY55 in cart + $0 shipping with Greater Rewards Membership = $14. Features synthetic upper, super soft and vented Techlite footbed/midsole, outsole grade Techlite for durability, cushioning and traction.
New Balance Outlet has the New Balance Men's Fresh Foam Cruz Decon Shoes (Black) for $35 + $1 shipping with coupon DOLLARSHIP (Ends 7/22) = $36 shipped. Features slip-on knit upper fuses to a two-way stretch, synthetic/mesh upper, Available in standard and wide widths in sizes from 7 to 13.