The Ti-Double 300 Mug is made of Japanese titanium using a historic manufacturing process. Durable and ultralight, the Ti-Double 300 is intended for daily use and camping sets. The mug&';s double-wall insulation keeps beverages warm or cool. Please note: double-wall titanium cannot be used for cooking or placed over a heat source. The Ti-Double 300 Mug pairs well with the Titanium Spork or Insulation Lid. Specs WEIGHT 3.3 oz (106 g) SIZE D 3" H 3.4" CAPACITY 10.1 fl oz MATERIAL Titanium