This novelty of the SIGG collection is a must-have for smoothies lovers - made of heat-resistant borosilicate glass - a fashionable accessory and pure drinking pleasure in 0. 65L. The material is also free from harmful substances such as, estrogen-active substances and phthalates. The soft silicone cover feels good to the hand is at the same time a shock protection. The lid is protected with foos grade Stainless-Steel on the inside. Pure and modern drinking!