ECOTOP is a revolutionary NEW product designed to turn your favorite mug into a travel mug! Cover your mug, cup, tumbler, or glass with an ECOTOP and help the ECOlogy and your ECOnomy! Boaters! Enjoy a hot mug of coffee while under sail! Golfers! Take an iced tea or tumbler of lemonade on the golf cart! Gardeners! Keep the bugs out of your glass! Beach bums! Drinks on the rocks, not on the sand! Soccer moms and dads! Wave the mug of coffee at the ref without spilling! Also silicone sleeves.