TempShield double-wall vacuum insulation protects temperature for hours Closeable Press-In Lid tames splashes, traps temperatures, and is straw compatible Compatible with Medium Closeable Press-In Straw Lid and Medium Press-In Straw Lid Fits most cup holders Color Last powder coat is durable, sweat-free, and colorful Made with 18/8 pro-grade stainless steel for durability, pure taste, and no flavor transfer BPA-Free Dishwasher safe Not for use on a stove, in a microwave, or freezer The 20 oz All Around Tumbler is ready for morning brews or microbrews, keeping drinks cold or hot for hours. The Closeable Press-In Lid slides snugly shut to keep splashes at bay. These insulated tumblers are incredibly comfy to hold and are easy to fill, sip and savor.