Skater Stainless Steel Mug Bottle STO4 An octagonal stainless steel mug bottle designed to fit comfortably in your hand and resist rolling away if knocked over. Its vacuum double-wall construction provides excellent heat retention and cold retention, preventing condensation. Dual spouts allow separate drinking of cold and hot beverages. Wide-mouth design for easy ice insertion. Lid features a non-slip grip for easy handling. Heat retention: 63°C or higher (6 hours) Cold retention: 9°C or lo