silicone water bottle 1.unbreakable and soft touch 2.good temperature resistanct from -50 degree to 200 degree. 3.keep warm ... :(1),safe silicone material,colorless,odorless,nontoxic,high and low temperature resistant(-50~200,sterilizable,ametabolic)(2),Measure up to SGS ... the fire source ,avoid contact with sharp objects. Tea name thermal drinking bottle