The Siren 40 oz Recycled Stainless Steel Vacuum Tumbler is built for those who demand performance and sustainability. Double-wall vacuum insulation keeps drinks hot for up to 8 hours and cold for up to 48 hours. The 2-in-1 screw-on lid features a built-in carrying handle and assembled infuser for tea or fruit. Non-PFAS powder coating and 304 stainless steel interior ensure durability and clean-tasting beverages every sip.
