Snowfox 8-ounce Martini Tumbler stays icy cold from first to last sip. Designed to feel like sipping from fine glassware but insulated so your drink stays cold and your hands stay warm and dry. Stemless design is more stable than standard stemmed glasses so you can worry less about spills.  Never sweats so no condensation mess Double wall construction keeps drinks icy cold and your hands warm and dry Lighter than glass and shatterproof Super thin rim for an exceptional drinking experience BPA Free food grade stainless steel won't affect the taste of your beverage. Hand wash only