These custom SIGG Thermos bottles keep your hot liquids perfectly warm for up to eight hours. Constructed from top quality stainless steel that is both odor and taste neutral. SIGG bottles are as good to more... look at as they are to drink from. Baked on powder coat finish lasts for years. Quality designs are printed using the latest UV technology, and will not fade after washing. SIGG bottles are pure aluminium and recyclable when they finally require replacement.