... cold for a longt time 3.Double wall stainless steel bottle 4.Good water proof Specification: Material:double wall stainless steelCapacity ... Preservation:keep warm more than 25 hoursLeakage:Delicate mould of bottle cork and screw thread,good leakage.Hygiene painting:silkscreen print ... logo,package etc.4. Easy to carry,suitable for travel bottle,office cup,business gift,promotion gift5. More styles and ...