PRODUCT DETAILS | BENEFITS | Our designers have developed this isothermal, anti-burn stainless steel mug for you to enjoy your favourite drinks in complete safety. 0.38L. | Isothermal: Double wall with air gap to keep your drinks hot or cold. | Ease Of Use: Carry handle, cover & double wall so you can drink without burning yourself.255g | Easy Maintenance: Easy to clean thanks to its large opening. Stainless steel internal wall. | Robustness: Double stainless steel int. wall con.18/8 (304) with an air gap between the two.