... Made of 100%silicone; 2.Tasteless,nontoxic,hygienic,eco-friendly; 3.Good flexibility,ametabolic; 4.Color changeable Silicone Baby bottle sleeve *Made ... of food grade silicone with FDA LFGB certificates *Color changeable,heat ... stick,anti-slip , Easy-Cleaning * Welcome for customized design. . Silicone Baby bottle sleeve