Relax by the pool in style with the Vino2Go double wall insulated wine tumbler set. These tumblers are SAN acrylic plastic wine sippy cups, with clear benefits over the standard wine glass in many situations. Its lid design prevents spills on choppy waters or while carting down the golf course. The sliding top lid keeps bugs and dirt from getting in your wine while relaxing at the beach or in the garden. The double walled design of this BPA- free tumbler also keeps your wine cool for longer by insulating the exterior wall from the interior drink compartment.