Built from 18/8 stainless steel with Thermo 3D double-wall vacuum insulation, the Erewhon All Day Stainless Steel Cup with Straw keeps drinks cold for hours. The hardshell powder coat finish holds up to daily use while maintaining a clean silhouette. Designed to fit standard cup holders, it moves from desk to gym without compromise. Comes with a spill-proof lid and straw. BPA-free. Available in a range of colorways to suit any preference.