The portable silicone foldable sippy cup is made from 100% food-grade premium silicone with the design of a hook to carry easily. Folding size is 2.4" H X 3.94" Dia. Unfolding size: 5.44" H X 3.94" Dia. BPA free, non-toxic, healthy, without any odor, wear and fall resistant. Natural insulator with cup sleeve keeps hands cool while drinking hot water. The leak-proof design has avoided water spilling. Complies with FDA, Prop 65. 4.13" L x 2.28" W x 1.18" H