The Reduce Aspen tumbler is a hybrid glass and insulated stainless steel tumbler designed for iced coffee, smoothies, boba tea, and other cold beverages. Each tumbler features a 20oz (590ml) capacity with a thermo-shock resistant borosilicate glass inner and a vacuum-insulated 18/8 recycled stainless steel outer sleeve that keeps drinks cold for up to 12 hours. The innovative 2-in-1 design allows you to use the dual-use lid and extra-wide straw on either the glass or the insulated sleeve, providing versatility for different beverage preferences.

Key features include an extra-wide Tritan straw perfect for thick smoothies and boba, a Soft Sit silicone base that protects surfaces and prevents tipping, and dishwasher-safe construction for easy cleaning. The package includes 2 borosilicate glass tumblers, 2 stainless steel sleeves, and 2 straws. Made with BPA-free materials, the Aspen combines the pure taste experience of glass with the temperature retention benefits of vacuum-insulated stainless steel. Product dimensions are 10 inches high by 3.7 inches wide. This Costco exclusive 2-pack is available in assorted colors and helps reduce ocean-bound plastic waste through the manufacturer's partnership with CleanHub.