Designed with double-walled vacuum insulation, the Yeti Rambler 295ml Tumbler holds both hot and cold liquids as needed, at the optimal temperature for lengthened amounts of time. The walls of the tumbler consist of 18/8 stainless steel, making it highly resistant to possible punctures and rusting. With a Magslider Lid, the contents of the tumbler are held securely from splashing when not in use and is easily toggled by sliding the magnet (this lid is not leakproof). The magnet can be easily removed for better access when cleaning. Coming along no matter the activity, this tumbler is compatible with most cupholders, perfect for long drives and camping chairs by the fire. | YETI Rambler Tumbler with Magslider Lid in Red | Size 10 oz