6pm cuts up to 78% off a selection of Sperry Top-Sider men's, women's, girls', and boys' shoes, sunglasses, and apparel, with prices starting at $5.99. Plus, all orders qualify for free shipping. Size availability for some items is limited. Deal ends December 22. A couple of best bets: Need your order by Christmas? You'll have to place an order of $75 or more before December 22 at 7 pm ET to receive guaranteed delivery.