GIGPS 16oz. double-wall suspended Glass Core Bottle is the perfect balance of health, style, and durability. Fill them with your favorite hot or cold beverages and enjoy the flavors in their crispest form—fresh from this pure borosilicate glass bottle. Glass, thread-free mouthpiece will not hold flavors—freeing you to switch between beverages. The silicone cushions and encapsulated shell protect the glass, but do not guarantee against breakage. Take your bottle everywhere without the worry of spilling it! 1/4-turn locking cap system is leak-proof and worry free!