REI Outlet offers the Sanuk Men's Donny Slip-On Shoes in Og Vintage Denim Stripe (pictured) or Brown Vintage Denim Stripe for $41.73. Opt for in-store pickup to avoid the $5.99 shipping charge. That's the lowest in-stock price we could find by $10, outside of the mention below. They're available in select sizes from 7 to 14.

Amazon offers select sizes and colors for $35.63 $32.71 with free shipping, however stock is limited.