Built for commuting, the Adrian Travel Tumbler features double wall stainless steel and a versatile hybrid lid system. Double wall stainless steel construction. Vacuum insulated to keep drinks cold or hot on the go. Rotating hybrid lid that accommodates a straw for cold drinks on one side or a thru-sip for hot drinks on the other. Rotating hybrid lid that accommodates a straw for cold drinks on one side or a thru-sip for hot drinks on the other.