Product Details Product Details 16oz capacityStainless steelVacuum sealed double-walled constructionKeeps drinks hot for 8-12 hoursCold for 24 hoursVersatile slider-top lidUse a straw or just sip!Stainless Steel Officially Licensed This Michigan Wolverines Stainless Steel Stemless is a great way to enjoy your favorite drink while supporting your favorite team. This Stainless Steel Stemless features a team logo on a team color curved stainless steel.