Zoku's 12oz. 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 strong, triangular tessellation found on the silicone pads protects the bottle from bumps and drops. Take your bottle everywhere without the worry of spilling it! 1/4-turn locking cap system is leak-proof and worry free! Product Details: Dimensions: 7.7cm(L) x 7.7cm(W) x 21cm(H) Capacity: 355ml / 12oz Weight: 320g Material: borosilicate glass, polypropylene, silicone Heat-resistance temperature: 95?C (glass core bottle) Care: hand wash, do not use dishwasher How To Use: Use for hot or cold beverages Clean by hand with a bottle brush and warm soap and water. Do not use dishwasher Leave cap off when storing to completely