Durable Non Flavour Impacting Handmade Using Borosilicate Glass And Food-Grade Silicone Which Are Bpa Free And Naturally Non-Reactive, Ensuring Your Drink Tastes Exactly As It Should. The Base Pad Offers Extra Protection Against Hard Surfaces. Glass Is However A Fragile Material So Please Do Take Extra Care Whilst Using And Cleaning. | | Pure Taste - Handmade By Our Artisans Using Tough Borosilicate Glass And Lid Which Are Bpa Free And Naturally Non-Reactive, Ensuring Your Drink Tastes Exactly As It Should | | Supreme Style Practicality Ergonomi