Stanley is a century-old American brand best known for its stainless-steel, double-wall vacuum-insulated drinkware, offering strong hot and cold retention in popular sizes such as 12oz (354 ml), 20oz (591 ml), and 30oz (887 ml).
Typical performance specs include keeping drinks hot for around 1.5 hours, cold for about 3 hours, and iced for up to 15 hours, with a rugged build and multiple color options that make it suitable for outdoor use, office desks, and in-car cup holders.
The 40oz Stanley Quencher ProTour Flip Straw Tumbler in Port Shimmer features:
 
 
Capacity: 40oz
 
 
18/8 recycled stainless steel, BPA-free
 
 
Double-wall vacuum insulation
 
 
Leak-resistant ProTour flip straw lid
 
 
Removable spout for easier cleaning and flexible drinking options