Stanley's insulated cup, now £14 on Amazon, keeps drinks cold, even melting ice, sparking sales surge.

Stanley's insulated cup, available on Amazon for £14, has gained popularity for its ability to keep drinks cold, even melting ice. The brand's Spring Sale also offers discounts on Stanley water bottles and flasks, keeping drinks cold for up to 11 hours and hot for 15 hours. Additionally, the Stanley Adventure Stacking Beer Pint, now £13.99, is praised for keeping drinks cold for up to 4 hours and hot for 45 minutes, ideal for outdoor activities.