YescomUSA via Rakuten offers its Yescom 16x16-Foot Square Sun Shade Sail in Desert Sand for $36.99. Apply coupon code "YES4" to sail that away to $32.99. With free shipping, that's $49 off and the lowest price we could find, although we saw it for a buck less last month. Deal ends July 13. Buy Now Features rust-proof galvanized corner tension rings 4 heavy-duty carabiners and nylon rope