KEEPS COLD UP TO 9 HOURS, HOT UP TO 3 HOURS. Copper coated triple insulated wine cup is double-walled and vacuum sealed with thick, professional grade 18/8 stainless steel.
SLIP-FREE, SCRATCH-FREE, NOISE-FREE SILICONE BASE keeps your stainless steel wine tumbler from tipping over or making too much noise when you set them down.
DISHWASHER SAFE stemless wine tumbler for easy cleaning. All Swig Life travel wine glasses and accessories (lids and bases) are top-rack dishwasher safe.